International Journal of Industrial Chemistry
type: channel
description: Publisher Change Announcement: Since the publication of Issue 2, Volume 14 (October 2023), the International Journal of Industrial Chemistry has been published by OICC Press (https://oiccpress.com/), and manuscript submission can be made via this link: https://mc04.manuscriptcentral.com/ijic OICC Press Contact details: Address: Stroud Court, Oxford Road, Eynsham, Witney, OX29 4DA, Oxfordshire, UK. Tel: +44 1865 884350 E-mail address: contact@oiccpress.com Contact & Complaint form: https://oiccpress.com/index/en/contact International Journal of Industrial Chemistry (IJIC) [ISSN: 2228-5970, E-ISSN: 2228-5547] is an open-access, free of charge and peer-reviewed journal published every three months (four issues per year) by the OICC Press and distributed in the world is an international scientific journal. Journal DOI: 10.57647/IJIC Journal Abbreviation: Int J Ind Chem Journal Title Acronym: IJIC Journal Owner: Islamic Azad University Publisher: Islamic Azad University, Co-publishing: OICC Press, UK We are now utilising the ScholarOne ManuscriptsTM platform (https://mc04.manuscriptcentral.com/ijic) to enhance the submission and peer-review processes. This change has streamlined our operations and will make your experience as an author/reviewer more efficient. The new Editor-in-chief and Director-in-charge have started their work at the IJIC on 5th October 2023.
language: en
publication name: International Journal of Industrial Chemistry
issn: 2228-5970
items: Synthesis and isotherm studies of nGO@nFe3O4 decorated with ZIF-8 for methylene blue removal
items: Predicting the properties of carbon black/silica-filled natural rubber-based compound by specifying the protein and lipid contents of natural rubber, before compounding
items: Enhanced green extraction of phytochemical compound from Eucheuma Cottonii using supercritical CO2 and Sub-critical water as a solvent: Optimization and kinetics modeling
items: Synthesis, antimicrobial activity, and molecular docking study of 1,3-oxazines derivatives
items: Synthesis of the composites based on PVA/Chitosan/Fe or Zn@Itaconic acid: investigation of the Itaconic acid concentrations to remove the organic dye pollution
items: Investigating chemical-biological degradation of plastic compounds by fungi isolated from industrial plastic waste
items: The role of Fe-Nx/N/V3C2 nanoelectrocatalyst based on organometallic framework in oxygen reduction activity
items: Improving production efficiency by implementing DMAIC phases on the Six Sigma method: a case study on the oil industry
items: Investigation of the effect of using ZnO/TiO2 nano particles on properties of the polyethylene terephthalate preform and beverage bottles
items: Investigation of total petroleum hydrocarbons and indigenous bacteria under aerobic conditions to increase the efficiency of conventional treatment systems for oil-polluted soils
items: New strategy to 1,8-dioxo-decahydroacridine derivatives using SnO2 nanoparticles via one-pot Knoevenagel condensation and Michael addition mechanisms
items: Screening of production of industrial cellulase by Aspergillus niger sp. isolated from salt ecosystem
items: Zeolitic imidazolate framework/graphene oxide hybrid nanosheets functionalized chitosan/poly (2-acrylamido-2-methyl-1-propane sulfonic acid-co-sodium acrylate) for Cu (II) adsorption
items: Zinc oxide nanoparticles biosynthesized with Thymus capitatus aqueous extract and evaluations on the effects in the properties of natural rubber compounds
items: Impact of carbon nanotube derived from rice husk to improved Corrosion Resistance of Zinc-PVDF- coating on mild steel
items: Sugarcane bagasse as a material in the production of polylactic acid
items: Application of (polyaniline/zeolite X) composite as anticorrosion coating for energy recovery devices in RO desalination water plants
items: Evaluation of eosin Y removal from aqueous solution using nano-mesoporous material MCFs: adsorption equilibrium, kinetics, and adsorption isotherms
items: Using BoxâBehnken experimental design to optimize the degradation of Basic Blue 41 dye by Fenton reaction
items: New triazepine carboxylate derivatives: correlation between corrosion inhibition property and chemical structure
items: Direct catalytic oxidation and removal of NO in flue gas by the micro bubbles gasâliquid dispersion system
items: Photo-curing kinetics of hydroxyethyl acrylate (HEA): synergetic effect of dye/amine photoinitiator systems
items: Suitability of aluminum material on sugar industry wastewater with chemical and electrochemical treatment processes
items: Highly dispersed cobalt FischerâTropsch synthesis catalysts supported on γ-Al2O3, CNTs, and graphene nanosheet using chemical vapor deposition
items: Corrosion inhibition and adsorption behavior of phytic acid on Pb and PbâIn alloy surfaces in acidic chloride solution
items: Modeling, simulation and optimal control strategy for batch fermentation processes
items: Graphene oxideâFe2V4O13 hybrid material as highly efficient hetero-Fenton catalyst for degradation of methyl orange
items: Inhibitory effect of Senecio anteuphorbium as green corrosion inhibitor for S300 steel
items: Amine contaminants removal using alginate clay hybrid composites and its effect on foaming
items: Synthesis and investigations of heterocyclic compounds as corrosion inhibitors for mild steel in hydrochloric acid

Synthesis and isotherm studies of nGO@nFe3O4 decorated with ZIF-8 for methylene blue removal
type: item
description: As the use of dyes in various industries has increased, environmental pollution has also increased due to the discharge of their wastewater into the waters. Here, the nanographene oxide@nano Fe3O4 (nGO@nFe3O4) decorated with ZIF-8 was synthesized to remove methylene blue from aqueous solutions. Physicochemical, thermal, morphological, and magnetic properties of ZIF-8@nGO@nFe3O4 nanocomposite adsorbent were characterized by standard analyses. SEM analysis show a porous structure and superposition of the layered structure of nGO@nFe3O4 which ZIF-8 was dispersed uniformly on or between the layers. Fine synthesis of the adsorbent was also confirm by FTIR. Results demonstrate the suitable growth of ZIF-8 on the surface of nGO@nFe3O4. The adsorbent possessed the appropriate magnetic ability and easily separated by a magnet. In addition, isotherm models of Langmuir, Freundlich, Temkin, and Redlich-Peterson were studied. Results show that Langmuir isotherm is the better model for describing the adsorption process, so, the adsorbent possesses a homogeneous surface, and the adsorption process is monolayer.
subject: Original Article
  topic: section
subject: Methylene blue
  topic: keywords
subject: ZIF-8
  topic: keywords
subject: Nanographene oxide
  topic: keywords
subject: Magnetic
  topic: keywords
subject: Isotherm
  topic: keywords
creator: Kaveh Pezeshk
creator: Maryam Khavarpour
creator: Seyed Mohammad Vahdat
creator: Seyed Meysam Baghbanian
creator: Mehri Esfahanian
rights: Copyright (c) -1 Kaveh Pezeshk, Maryam Khavarpour, Seyed Mohammad Vahdat, Seyed Meysam Baghbanian, Mehri Esfahanian (Author) https://creativecommons.org/licenses/by/4.0
date: 2025-05-29
publication date: 2025-05-29
doi: 10.57647/j.ijic.2025.1601.05

Predicting the properties of carbon black/silica-filled natural rubber-based compound by specifying the protein and lipid contents of natural rubber, before compounding
type: item
description: Nowadays, the protein and lipid contents of natural rubber are not included in most of the rubber’s data sheet. This study investigates the effects of the mentioned parameters on the cure and some physico-mechanical features of natural rubber based compounds, filled with carbon black/silica as a dual filler. Kjeldahl and extraction methods are applied to measure the protein and lipid contents of different types of natural rubber, respectively. The first and second-order fitting models show the correlations between the protein, lipid, and protein+lipid contents with cure and some physicomechanical characteristics. The introduced models are used to estimate the features in the case study. Results are presented that, by applying the correlations between lipid content and torque difference, cure rate index, scorch time, optimum cure time, and modulus 100%, these properties can be estimated by less than 10% error. Using the correlations between the protein content with compression set and resilience make it possible to predict these properties with less than 10% and 15% errors respectively. The outcomes present the importance of clarity of the protein and lipid contents of natural rubber for preparing well-designed, high-performance products before compounding.
subject: Original Article
  topic: section
subject: Compound
  topic: keywords
subject: Cure characteristics
  topic: keywords
subject: Lipid
  topic: keywords
subject: Natural rubber
  topic: keywords
subject: Physico-mechanical properties
  topic: keywords
subject: Protein
  topic: keywords
creator: Fereshteh Eildari
creator: Mercedeh Malekzadeh
creator: Mandana-Maryam Saber-Tehrani
creator: Fereshteh Motiee
rights: Copyright (c) -1 Fereshteh Eildari, Mercedeh Malekzadeh, Mandana-Maryam Saber-Tehrani, Fereshteh Motiee (Author) https://creativecommons.org/licenses/by/4.0
date: 2025-05-29
publication date: 2025-05-29
doi: 10.57647/j.ijic.2025.1601.04

Enhanced green extraction of phytochemical compound from Eucheuma Cottonii using supercritical CO2 and Sub-critical water as a solvent: Optimization and kinetics modeling
type: item
description: Numerous active ingredients found in Eucheuma cottonii have applications in the food, cosmetic, and pharmaceutical industries, among others. Extraction is one of the biomass separation procedures that yields high purity. This work used supercritical CO2 and subcritical water as a solvent to extract phytochemical components from Eucheuma cottonii. Both solvents used are easily available, environmentally friendly, and affordable. Supercritical CO2 extraction is carried out at a temperature of 60 °C and a pressure of 25 MPa, while Sub-critical water extraction (SWE) is carried out at a temperature of 120 °C − 160 °C and a pressure of 3 MPa − 5 MPa. The yields of β-carotene and linoleic acid were 0.0019 μg/g sample and 0.0841 μg/g sample. Meanwhile, the results of SWE were kappa-carrageenan and total phenolic compounds with the largest yield of 55.8% at a temperature of 160 °C and 5 MPa. The data obtained were then analyzed for optimum operating conditions using Face-centered central composite design (FCCCD), where the optimum operating conditions correspond to the largest value of the TPC yield produced. In addition, the data were analyzed using extraction kinetics modeling, where the results showed agreement with first-order kinetics and the activation energy value was 20.563 KJ/mol.
subject: Original Article
  topic: section
subject: Eucheuma Cottonii
  topic: keywords
subject: FCCCD
  topic: keywords
subject: First-order kinetics
  topic: keywords
subject: Supercritical CO2
  topic: keywords
subject: Subcritical water
  topic: keywords
creator: Dwi Setyorini
creator: Achmad Qodim Syafaatullah
creator: Anggi Yuktii Kulla
creator: Siti Machmudah
creator: Wahyu Diono
rights: Copyright (c) -1 Dwi Setyorini, Achmad Qodim Syafaatullah, Anggi Yuktii Kulla, Siti Machmudah, Wahyu Diono (Author) https://creativecommons.org/licenses/by/4.0
date: 2025-03-20
publication date: 2025-03-20
doi: 10.57647/j.ijic.2025.1601.03

Synthesis, antimicrobial activity, and molecular docking study of 1,3-oxazines derivatives
type: item
description: Computational methods have become integral in various stages of drug development, from initial hit discovery through lead optimization and beyond. Among these methods, molecular docking stands out as the most extensively employed technique in computer-aided drug design. In this study, the biological activity and molecular docking of the synthesized derivatives were investigated for the first time. An effective one-pot four- component method was studied for the synthesis of (5-hydroxy-2,4-dipheny-2H-benzo[e][1,3]oxazin-3(4H)- yl)(phenyl)methanone derivatives by condensation reaction of Resorcinol with various aromatic aldehydes, carboxylic acids and ammonia. The synthesized compounds underwent testing for their antimicrobial effectiveness against both Gram-positive and Gram-negative bacteria, and were benchmarked against standard drugs like ciprofloxacin. Results indicated that the synthesized compounds exhibited moderate to potent antibacterial properties, a finding further supported by molecular modeling conducted in this study, also, this series of synthesized derivatives of 1,3-oxazines have a significant effect on Gram-negative bacteria compared to Gram-positive bacteria. The computational findings suggested that inhibiting DNA gyrase could achieve antibacterial activity. DNA gyrase in bacteria is a well-established and validated target for developing new antibacterial compounds. Pharmacophore analysis revealed that features such as hydrogen bond acceptors, hydrogen bond donors, and hydrophobicity contribute to this inhibition. However, these computer simulations represent just the beginning stages for initiating new projects aimed at developing antimicrobial molecules.
subject: Original Article
  topic: section
subject: Molecular docking
  topic: keywords
subject: 1,3-oxazines
  topic: keywords
subject: Biological activity
  topic: keywords
subject: Multicomponent reactions
  topic: keywords
creator: Narges Samoori
creator: Naser Foroughifar
creator: Alireza Khajeh-Amiri
creator: Hoda Pasdar
rights: Copyright (c) 2025 Narges Samoori, Naser Foroughifar, Alireza Khajeh-Amiri, Hoda Pasdar (Author) https://creativecommons.org/licenses/by/4.0
date: 2025-03-20
publication date: 2025-03-20
doi: 10.57647/j.ijic.2025.1601.02

Synthesis of the composites based on PVA/Chitosan/Fe or Zn@Itaconic acid: investigation of the Itaconic acid concentrations to remove the organic dye pollution
type: item
description: Colored effluents caused by organic dyes endanger the health of living organisms and the environment. Therefore, it is necessary to remove such dyes before discharge into natural watercourses.The ancient Egyptians and Persians used Alizarin dye, Historically it was derived from the roots of plants of the madder genus that back to 3000 BC. In recent years, polymer hydrogels or their composites have received more attention as adsorbents of heavy metal ions, and the removal of recalcitrant organic dyes due to their low cost, easy transport, and reusability. In the current study, we have tried to investigate the effect of composites based on polyvinyl alcohol (PVA), chitosan matrix, and metal cores on the removal and decomposition of organic dyes such as Eriochrome black T (EBT) and Alizarin red (AR). The results of EBT and AR degradation by the liquid chromatography-mass spectrometry (LC-MS) method clearly show many by-products during the degradation process by our hydrogel, which can be potentially helpful to the environment. The results showed the completed removal of dyes from contaminated water.
subject: Original Article
  topic: section
subject: Dye decomposition
  topic: keywords
subject: Itaconic acid
  topic: keywords
subject: PVA
  topic: keywords
subject: Chitosan
  topic: keywords
subject: Alizarin red
  topic: keywords
subject: Eriochrome black T
  topic: keywords
creator: Hamed Abdeli
creator: Mohammad Reza Sazegar
creator: Hasan Kabirifard
creator: Manzarbanoo Asnaashari-Isfahani
rights: Copyright (c) 2025 Hamed Abdeli, Mohammad Reza Sazegar, Hasan Kabirifard, Manzarbanoo Asnaashari-Isfahani (Author) https://creativecommons.org/licenses/by/4.0
date: 2025-01-19
publication date: 2025-01-19
doi: 10.57647/j.ijic.2025.1601.01

Investigating chemical-biological degradation of plastic compounds by fungi isolated from industrial plastic waste
type: item
description: This study aimed to isolate chemical-biological plastic-degrading fungi and investigate their enzymatic biochemical activity. A collection of fungal isolates from 30 different plastic compounds collected from industrial waste. Aspergillus niger, Aspergillus flavus, Penicillium commune, Bipolaris sorokiniana, Curvularia eragrostidis capable of chemical-biological degrading the selected compounds were identified based on PCR. Using lccC and Mnp primers, the gene of Mnp and laccase producing enzyme was identified. SEM was used to determine the surface degradation, porosity, and fragility of polyethylene, and FTIR was used to determine its chemical structure. Aspergillus niger, Curvularia eragrostidis, penicillium commune, and Bipolaris sorokiniana were identified among the industrial plastic waste, they decompose polyethylene more and Aspergillus flavus showed the greatest weight loss in the decomposition of industrial plastic waste in the culture medium. The decomposition of plastic waste by microbes in a short time not only solves the problem of waste accumulation but also produces valuable compounds like SCP.
subject: Original Article
  topic: section
subject: Polyethylene
  topic: keywords
subject: Aspergillus niger
  topic: keywords
subject: Curvularia eragrostidis
  topic: keywords
subject: Laccase
  topic: keywords
subject: Urease
  topic: keywords
subject: Lipase
  topic: keywords
creator: Elham Taghinia
creator: Mohaddeseh Larypoor
creator: Fereshteh Rahmati
rights: Copyright (c) 2024 Elham Taghinia, Mohaddeseh Larypoor, Fereshteh Rahmati (Author) https://creativecommons.org/licenses/by/4.0
date: 2024-11-30
publication date: 2024-11-30
starting page: 1
ending page: 10
doi: 10.57647/j.ijic.2024.1504.25

The role of Fe-Nx/N/V3C2 nanoelectrocatalyst based on organometallic framework in oxygen reduction activity
type: item
description: In the contemporary era, it is imperative to advance the creation of supremely efficient electrocatalysts for the oxygen reduction reaction (ORR) that utilize readily available, frequent, and economically viable elements. Organometallic frameworks (MOFs), which have the ability to adjust the pore size, have been considered in various research fields, including catalysts. Significantly, a considerable array of materials derived from or founded on MOFs have been utilized for ORR as a result of their expansive surface area, adjustable components, and manageable pore size. In this research, the novel material Fe-Nx/N/V3C2 was prepared using a straightforward synthesis method. V3C2, when utilized as a conductive substrate, has the capability to hinder the degradation and buildup of the Fe-N-C structure during the pyrolysis process, thereby providing stabilization to the electrocatalyst. The cooperative interactions between Fe-Nx and the V3C2 substrate enhance the electron-ion transfer mechanism within the nanocomposite, ultimately establishing a four-electron pathway. Finally, due to the uniform dispersion of Fe-Nx on the V3C2 porous substrate, the electrode produced from the nanocomposite showed good ORR catalytic activity with limiting current density (JD), half-wave potential (E1/2) and n values of 4.5 mA cm−2, 0.896 V and 3.98, respectively.
subject: Original Article
  topic: section
subject: Organometallic framework
  topic: keywords
subject: Fe-Nx/N/V3C2
  topic: keywords
subject: Electrocatalyst
  topic: keywords
subject: Oxygen reduction
  topic: keywords
creator: Mahdi Soleimani Moghaddam
creator: Leila Asadi Kafshgari
creator: Mahdieh Houshani
creator: Ali Bahari
creator: Babak Sadeghi
creator: Sogol Motallebi Tala Tapeh
creator: Ebrahim Shokraei
rights: Copyright (c) 2024 Mahdi Soleimani Moghaddam, Leila Asadi Kafshgari, Mahdieh Houshani, Ali Bahari, Babak Sadeghi, Sogol Motallebi Tala Tapeh, Ebrahim Shokraei (Author) https://creativecommons.org/licenses/by/4.0
date: 2024-11-29
publication date: 2024-11-29
starting page: 1
ending page: 8
doi: 10.57647/j.ijic.2024.1504.24

Improving production efficiency by implementing DMAIC phases on the Six Sigma method: a case study on the oil industry
type: item
description: High-level competition in business requires improving the quality of the organization’s product or service. Six Sigma with the DMAIC approach is a strategy that has been effective in improving product and service quality, and the concept of ”Six Sigma” as an integrated strategy is still being developed. This article has tried to achieve qualitative and quantitative improvements in the oil production process of an FMCG company by using the Six Sigma method and implementing the DMAIC cycle. Therefore, we will first examine the basic concepts of Six Sigma, how to implement the DMAIC cycle, and the effective elements of production, and then identify the problems related to reducing stoppages, waste, and completing empty capacities in the oil industry. Finally, we will consider increasing the production capacity to improve the overall effectiveness of the equipment. In the next step, with the help of mental storm sessions, the causes of the stops are investigated, and with the help of cause-and-effect diagrams, Pareto and MINITAB software, the main causes of the problem are identified and effective improvements are suggested.
subject: Original Article
  topic: section
subject: Six Sigma
  topic: keywords
subject: DMAIC cycle
  topic: keywords
subject: Pareto chart
  topic: keywords
subject: Overall Equipment Effectiveness (OEE)
  topic: keywords
subject: SMART method
  topic: keywords
subject: Process flow chart
  topic: keywords
subject: Decision tree
  topic: keywords
subject: FMEA failure analysis
  topic: keywords
creator: Hamid Esmaili
creator: Reza Bornak
creator: Afsaneh Shahrokhi
creator: Hossein Jadidi
rights: Copyright (c) 2024 Hamid Esmaili, Reza Bornak, Afsaneh Shahrokhi, Hossein Jadidi (Author) https://creativecommons.org/licenses/by/4.0
date: 2024-11-29
publication date: 2024-11-29
starting page: 1
ending page: 26
doi: 10.57647/j.ijic.2024.1504.23

Investigation of the effect of using ZnO/TiO2 nano particles on properties of the polyethylene terephthalate preform and beverage bottles
type: item
description: In this study poly ethylene terephthalate (PET) based extrudate contains nano ZnO/TiO2 particles was produced. Pure and nano PET-based preforms and bottles were made at 0,1,2 and 3% nano loading respectively. PET preform quality tests showed that nanoparticles had no effect on the shape and thickness of preforms but when the nano concentration was increased from 1 to 3 percent, colored birefringent at the edge and black birefringence stripes of preforms were decreased. SEM images of bottle layer at different nano loading showed that the distribution of spherical particles of ZnO in the PET was very well in the PET matrix and TiO2 particles has better dispersion compared to nano-ZnO. The results of optical transmittance spectra of the beverage bottle wall showed that highest uv absorption wavelength was observed at bottles with 3 % nano particles loading and the bottles with nanoparticles offered a higher shielding effect against the color of contents compared to samples containing the nanoparticles. FTIR analysis showed that combination of TiO2 and ZnO nanoparticles to PET matrix, led to new peaks appeared at nanocomposites. It was observed that the growth of Escherichia coli (EC) and staphylococcus aureus (SA) on PET layer was prohibited by adding nanoparticles to polymer matrix.
subject: Original Article
  topic: section
subject: Poly ethylene terephthalate
  topic: keywords
subject: Preform
  topic: keywords
subject: Bottle
  topic: keywords
subject: Nanoparticle
  topic: keywords
subject: Birefringent
  topic: keywords
creator: Majid Khani
creator: Mehdi Pordel
creator: Abolghasem Davoodnia
creator: Afshin TavasoliFarsheh
rights: Copyright (c) 2024 Majid Khani, Mehdi Pordel, Abolghasem Davoodnia, Afshin TavasoliFarsheh (Author) https://creativecommons.org/licenses/by/4.0
date: 2022-12-20
publication date: 2022-12-20

Investigation of total petroleum hydrocarbons and indigenous bacteria under aerobic conditions to increase the efficiency of conventional treatment systems for oil-polluted soils
type: item
description: Currently, the spread of soil oil pollution has had adverse effects on human and the environment due to using fossil fuels in industrial zones. This study was conducted to identify indigenous bacteria from the soil polluted with petroleum compounds in order to reduce polluting hydrocarbon compounds. Agar culture medium was used for the growth of bacteria in the saline liquid base medium and bacterial culture and to obtain a single colony in the solid medium. Then, the bacteria that could grow and multiply in the presence of these compounds were identified using the polymerase chain reaction (PCR) and recorded as new species. After testing the bacteria isolation and growth, purification and finally PCR and sequencing, it was found that the isolated indigenous bacteria belong to Peseudomons aeruginosa and Bacillus nakamurai species. According to the study results, the highest and lowest percentages of reduction in hydrocarbon pollutants were related to the sample of Pseudomonas aeruginosa (53.50%) and a combination of Bacillus nakamurai and Pseudomonas aeruginosa (21.48%). The study results showed the importance and efficiency of indigenous bacteria on reducing or removing hydrocarbon polluting compounds.
subject: Original Article
  topic: section
subject: Hydrocarbon pollutant
  topic: keywords
subject: Polluted soils
  topic: keywords
subject: Peseudomons aeruginosa
  topic: keywords
subject: Bacillus nakamurai
  topic: keywords
subject: PCR;
  topic: keywords
subject: Bouali Sina Petrochemical
  topic: keywords
creator: Sana Rasouli
creator: Morteza Kashefi Asl
creator: Reza Marandi
creator: Mozhgan Emtyazjoo
creator: Mozhgan Zaeimdar
rights: Copyright (c) 2024 @Authors https://creativecommons.org/licenses/by/4.0/
date: 2024-07-30
publication date: 2024-07-30
starting page: 1
ending page: 9
doi: 10.57647/j.ijic.2024.1502.12

New strategy to 1,8-dioxo-decahydroacridine derivatives using SnO2 nanoparticles via one-pot Knoevenagel condensation and Michael addition mechanisms
type: item
description: A versatile, convenient one-pot and three-component strategy has been promoted to prepare 1,8-dioxo-decahydroacridines in an environmentally benign solvent in using of catalytic amountsof SnO2nanoparticles. This technique is particularly appropriate for the convenient and rapidparallel synthesis of 1,8-dioxo-decahydroacridines. This technique has been compared with that ofBrφnsted acidic imidazolium salts, perfluoroalkyl tails, DBSA, and Cu-doped ZnO nanocrystallinepowder, which showed that the SnO2nanoparticles gave an improved reaction rate and yield.It also has some advantages, for example, the application of a green solvent, ease of operation,and effortlessness of purification by washing crude products with ethanol. Furthermore, thisnanoparticle catalyst was separated by a centrifuge and reused up to five times with only aninsignificant loss of catalytic efficiency.
subject: Original Article
  topic: section
subject: 1,8-dioxo-decahydroacridines
  topic: keywords
subject: Ethanol solvent
  topic: keywords
subject: One-pot reaction
  topic: keywords
subject: Three-component reaction
  topic: keywords
subject: SnO2 nanoparticles
  topic: keywords
creator: Azam Alsadat Mousavi
creator: Seyed Mohammad Vahdat
rights: Copyright (c) 2024 @Authors https://creativecommons.org/licenses/by/4.0/
date: 2024-09-20
publication date: 2024-09-20
starting page: 1
ending page: 9
doi: 10.57647/j.ijic.2024.1503.22

Screening of production of industrial cellulase by Aspergillus niger sp. isolated from salt ecosystem
type: item
description: Aspergillus is the most important cellulase enzyme producer. Isolation of native species of Aspergillus in order to investigate the potential of cellulase production is the aim of this research. 50 air and soil samples were taken from Howz-e Soltan Lake, Aran- Bidgol Salt Lakes and were cultured on a specific culture medium (such as Rose Bengal plate) and the colonies were identified by macroscopic, microscopic, biochemical, and molecular PCR methods. Cellulase enzyme activity was done quantitatively and qualitatively. Plackett-Burman method was used to optimize screen for significant factors in enzyme production. The phylogeny tree of the best cellulase enzyme producing strains was drawn with Mega7 software. Among the 10 Aspergillus niger species isolated, No. 7 had the highest amount of cellulase production. Screening results showed that a mixture of wheat straw and rice bran (in the ratio of 70:30), humidity of 37.5%, a range of CaCo3, inoculation of 106 spores per gram, and the presence of carboxymethyl cellulose 90%, and incubation at a temperature of 25 ◦C resulted in the maximum production of cellulase enzyme. Aspergillus niger is a halophilic fungus that has a high capacity to produce enzymes in industry.
subject: Original Article
  topic: section
subject: Aspergillus
  topic: keywords
subject: Plackett-Burman method
  topic: keywords
subject: Cellulase
  topic: keywords
subject: Howz-e Soltan Lake
  topic: keywords
subject: Aran and Bidgol Lake
  topic: keywords
creator: Mohaddeseh Azizi
creator: Mohaddeseh Larypoor
creator: Mehrdad Azin
rights: Copyright (c) 2024 @Authors https://creativecommons.org/licenses/by/4.0/
date: 2024-09-20
publication date: 2024-09-20
starting page: 1
ending page: 10
doi: 10.57647/j.ijic.2024.1503.20

Zeolitic imidazolate framework/graphene oxide hybrid nanosheets functionalized chitosan/poly (2-acrylamido-2-methyl-1-propane sulfonic acid-co-sodium acrylate) for Cu (II) adsorption
type: item
description: The investigation centered on developing a hybrid nanosheets composed of zeolitic imidazolate framework-8 and graphene oxide (ZIF-8/GO), where ZIF-8 crystals were grown on GO layers. These were subsequently functionalized with a composite of chitosan and poly (2-acrylamido-2- methyl-1-propane sulfonic acid-co-sodium acrylate) (CS/P(AMPS-co-NaAA)). The fabricated ZIF-8/GO@CS/P(AMPS-co-NaAA) nanocomposite demonstrated its capability to remove Cu (II) ions from contaminated water. Analytical techniques such as Fourier Transform Infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), and thermogravimetric analysis (TGA) were employed to characterize the material. Optimization of the adsorption process was achieved by adjusting critical variables, including the pH of the solution, contact time, the quantity of adsorbent used, and the concentration of the metallic ion initially present. An impressive removal efficiency of 98.1% was recorded. Furthermore, an elevation in temperature appeared to increase the adsorbent’s capacity for capturing copper ions. Moreover, the equilibrium behavior of the adsorption was assessed using several isotherm models—Freundlich, Temkin, Langmuir, and Dubinin-Radushkevich, with the Freundlich isotherm providing the best correlation. Kinetic studies supported the pseudo-second-order kinetic model, and thermodynamic analyses confirmed the spontaneous and endothermic nature of the adsorption. These results underscore the high effectiveness of the synthesized adsorbent in the remediation of Cu (II) from wastewater.
subject: Original Article
  topic: section
subject: Adsorption
  topic: keywords
subject: Kinetic
  topic: keywords
subject: Isotherm
  topic: keywords
subject: Thermodynamic
  topic: keywords
subject: ZIF-8/GO@CS/P(AMPS-co-NaAA) nanocomposite
  topic: keywords
creator: Fereshteh Khorasani
creator: Maryam Khavarpour
creator: Seyed Meysam Baghbanian
creator: Seyed Mohammad Vahdat
rights: Copyright (c) 2024 @Authors https://creativecommons.org/licenses/by/4.0/
date: 2024-09-30
publication date: 2024-09-30
doi: 10.57647/j.ijic.2024.1503.19

Zinc oxide nanoparticles biosynthesized with Thymus capitatus aqueous extract and evaluations on the effects in the properties of natural rubber compounds
type: item
description: Zinc oxide, a vital activator in the rubber industry, is used in large quantities due to its effect on the curing process of rubber compounds. In this research, zinc oxide nanoparticles were synthesized using Thymus capitatus leaf water extract and after adding zinc oxide nanoparticles to natural rubber and preparing nanocomposite, curing time and physical and mechanical properties were evaluated. The aqueous extract of the Thymus capitatus plant was used as stabilizing agent in the presence of sodium hydroxide to produce zinc oxide nanoparticles. BET, X-ray diffraction (XRD), UV-vis spectrum, scanning electron microscope (SEM), and transmission electron microscope (TEM) were used to determine the characteristics of the synthesized nanoparticles. The synthesized zinc oxide nanoparticles (0.5 phr) were used instead of industrial zinc oxide (5 phr). The zinc oxide nanoparticles synthesized by the green method improved the physical and mechanical properties of the polymer matrix due to the reduction of the curing time and a decrease in consumption by one-tenth in the natural rubber mixture. Comparison of ion leaching of nanocomposite and thermal degradation of natural rubber mixtures containing zinc oxide nanoparticles and industrial zinc oxide indicates the stability of synthesized zinc oxide nanoparticles.
subject: Original Article
  topic: section
subject: Zinc oxide nanoparticles
  topic: keywords
subject: Natural rubber
  topic: keywords
subject: Thymus capitatus
  topic: keywords
subject: Curing
  topic: keywords
subject: Nanocomposite
  topic: keywords
creator: Monireh Alvand Ghiasvand
creator: Mohammad Reza Allah Gholi Ghasri
creator: Sajjad Sedaghat
creator: Fereshteh Motiei
creator: Farrokh Roya Nikmaram
rights: Copyright (c) 2024 @Authors https://creativecommons.org/licenses/by/4.0/
date: 2024-09-20
publication date: 2024-09-20
starting page: 1
ending page: 9
doi: 10.57647/j.ijic.2024.1503.21

Impact of carbon nanotube derived from rice husk to improved Corrosion Resistance of Zinc-PVDF- coating on mild steel
type: item
description: A carbon nanotube (CNTs) derived from rice husk was used in this work to reduce the unbound volumes and corrosion rate of Zn-PVDF in simulated sea water. The coating was developed using the electrodeposition method by varying CNTs from 0 to 0.6 g/L. Electrochemical impedance spectroscopy (EIS) determined the corrosion of the samples, while scanning electron microscopy determined the microstructure of the coated samples. The work shows that the addition of carbon nanotubes (CNTs) to Zn-PVDF significantly enhanced the overall corrosion resistance of the samples. The sample with a 0.6 g/L coating demonstrated the greatest corrosion resistance, with 309.19% corrosion protection efficiency. The microstructure demonstrated that adding CNTs reduced PVDF volume expansion. The study has demonstrated the use of waste rice husk in the production of carbon nanotubes to enhance the corrosion resistance of Zn PVDF coatings.
subject: Original Article
  topic: section
subject: PVDF polymer
  topic: keywords
subject: Zinc coating
  topic: keywords
subject: CNTs
  topic: keywords
subject: Corrosion
  topic: keywords
subject: Characterization
  topic: keywords
creator: Victor Sunday Aigbodion
creator: Ahmad Royani
rights: Copyright (c) 2024 @Authors https://creativecommons.org/licenses/by/4.0/
date: 2024-09-20
publication date: 2024-09-20
starting page: 1
ending page: 6
doi: 10.57647/j.ijic.2024.1503.18

Sugarcane bagasse as a material in the production of polylactic acid
type: item
description: Sugarcane bagasse (SCB) is an abundant, renewable, and low-cost lignocellulosic material from sugarcane juice extraction. The SCB was used as a substrate for the production of lactic acid (LA), with Lactobacillus helveticus/Streptococcus thermophilus as bacteria, in different fermentation conditions: (4, 8, 24, 48, 72) hours, and (37, 40)◦C. The highest concentration of LA was 3.56 g/L at 40◦C after 72 hours of fermentation. The polymerization of LA was the ring opening method, obtaining 1.15 g of PLA with a yield of 19.29% and 0.12% concerning lactide and SCB. Although the concentration obtained is low concerning other research, the SCB use in countries with high sugar cane production represents an eco-friendly proposal for producing organic acids and biobased polymers with properties similar to the synthetic origin. This research provides an environmental solution to the problem of agribusiness waste and a proposal with the potential to develop new products.
subject: Original Article
  topic: section
subject: Acid lactic
  topic: keywords
subject: Bioplastics
  topic: keywords
subject: Sugarcane
  topic: keywords
subject: Waste revaluation
  topic: keywords
creator: Avell´an Rengifo Adriana Cecilia
creator: Mendoza Palma Angie Nicole
creator: Wilmer Ponce
creator: Mar´ıa Antonieta Riera
rights: Copyright (c) 2024 @Authors https://creativecommons.org/licenses/by/4.0/
date: 2024-09-20
publication date: 2024-09-20
starting page: 1
ending page: 11
doi: 10.57647/j.ijic.2024.1503.17

Application of (polyaniline/zeolite X) composite as anticorrosion coating for energy recovery devices in RO desalination water plants
type: item
description: Reverse osmosis desalination water plants have several operational issues such as corrosion in many areas like energy recovery devices that are accustomed to restore energy and scale back prices. Thus, there is a necessity to reduce the corrosion rate of the devices utilized in energy recovery. This study focuses on protection of some metals and alloys that are utilized in this industry by introducing a new anticorrosion coating. The new anticorrosion coating was formulated by the interaction of polyaniline and X-type zeolite that is employed as hosting material. Polyaniline was first formulated by conventional oxidation polymerization method of aniline in acidic medium at temperature below 5 °C by using ice bath. Then, ammonium persulphate was used as oxidizer. Numerous characterization techniques were used to demonstrate the encapsulation of polyaniline in X-type zeolite frames such as IR, UVâvisible spectroscopy, scanning electron microscopy, transmission electron microscope, energy-dispersive X-ray and X-ray diffraction. The new anticorrosion coating was evaluated by using weight loss technique, Tafel polarization and electrochemical impedance spectroscopy; all of these techniques showed the effective anticorrosion properties of the prepared coating in which the corrosion rate from the polarization curves results, for all coated samples, was less than the bare ones as it recorded 2.403, 1.094, 23.48, 35.09 MPY for bare 304 and 316 stainless steel, Al and carbon steel, respectively, and 0.3132, 0.2733, 0.2506, 10.81 MPY for the coated samples. Corrosion results showed a noteworthy protection of the tested metals and alloys in saline water coated with the polyaniline/zeolite X.
subject: Original Article
  topic: section
subject: Coatings
  topic: keywords
subject: Corrosion
  topic: keywords
subject: Energy recovery
  topic: keywords
subject: Polymer composites
  topic: keywords
creator: Ahmed H. Abdel Aziz
creator: Tarek S. Jamil
creator: Marwa S. Shalaby
creator: Ahmed M. Shaban
creator: Eglal R. Souaya
creator: Nabil A. Abdel Ghany
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-0182-7

Evaluation of eosin Y removal from aqueous solution using nano-mesoporous material MCFs: adsorption equilibrium, kinetics, and adsorption isotherms
type: item
description: Mesocellular foams (MCFs) silica was successfully synthesized using hydrothermal method. The mesoporous material was characterized by X-ray diffraction, infrared spectroscopy, low temperature nitrogen adsorptionâdesorption, scanning electron microscopy, transmission electron microscopy. The low temperature nitrogen adsorptionâdesorption results showed that the synthesized MCFs has a diameter of 12 nm. Transmission electron microscopy revealed that the MCFs synthesized had a good honeycomb structure aperture and is conducive to the adsorption of dye macromolecule. This paper carried out the study on the adsorption of eosin Y by MCFs. The adsorption conditions of eosin Y by MCFs were optimized and the optimum adsorption conditions obtained were: MCFs:(eosin Y)â=â250:1, pH 2.0, contact time 10 min at a room temperature of 22â±â1 °C. Under the conditions, the adsorption effect was the best, the adsorption rate reached 97.95% and the adsorption capacity reached 3.96 mg/g. The research results of adsorption kinetics for the adsorption system displayed that the adsorption is the pseudo-second-order adsorption. The research results of adsorption thermodynamics showed that â³G0â<â0, ÎH0â=âââ40.08 kJ/mol, ÎS0â=âââ51.11 J/(mol K), and the adsorption is an exothermic, spontaneous and entropy reduction reaction process. This adsorption conforms to the isothermal adsorption equation of Langmuir, belonging to a single molecular layer adsorption. All the linear correlation coefficients of the Langmuir isotherm equations fitting (R2) were greater than 0.999.
subject: Original Article
  topic: section
subject: Adsorption
  topic: keywords
subject: Eosin Y
  topic: keywords
subject: Kinetics
  topic: keywords
subject: MCFs
  topic: keywords
subject: Mesoporous molecular sieve
  topic: keywords
subject: Thermodynamics
  topic: keywords
creator: Xiao-Dong Li
creator: Qing-Zhou Zhai
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-020-00202-4

Using BoxâBehnken experimental design to optimize the degradation of Basic Blue 41 dye by Fenton reaction
type: item
description: Degradation of a Basic Blue 41 dye using Fenton reagent was examined at laboratory scale in batch experiments using BoxâBehnken statistical experiment design. Dyestuff, hydrogen peroxide (H2O2) and ferrous ion (Fe2+) concentrations were selected as independent factors. On the other hand, color and chemical oxygen demand (COD) removal were considered as the response functions. The value of coefficient of determination (R2) for both color and chemical oxygen demand removal with values 0.98 and 0.99 shows the best agreement between predicted value and experimental values. Perturbation plots indicated that iron dosage has the most effect on both color and COD removal. Normalized plot of residuals also indicated that the models were adequate to predict for both responses. Color and COD removal increased with increasing H2O2 and Fe2+ concentrations up to a certain level. High concentrations of H2O2 and Fe2+ did not result in better removal of color and COD due to hydroxyl radical being gradually consumed by both oxidant and catalyst. Percent color removal was higher than COD removal indicating the production of colorless compounds. The second-order polynomial model revealed optimal process factor ratio. The ratio of H2O2/Fe2+/dyestuff which gives a complete color removal and 95% COD removal was found to be 1195 mg/L/90 mg/L/255 mg/L.
subject: Original Article
  topic: section
subject: Basic Blue 41 dye
  topic: keywords
subject: Behnken design
  topic: keywords
subject: Box
  topic: keywords
subject: Chemical oxygen demand removal
  topic: keywords
subject: Color removal
  topic: keywords
subject: Fenton oxidation
  topic: keywords
creator: Desta Solomon
creator: Zebene Kiflie
creator: Stijn Van Hulle
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-020-00201-5

New triazepine carboxylate derivatives: correlation between corrosion inhibition property and chemical structure
type: item
description: In this investigation, attempts have been made to study the corrosion inhibition properties of three new triazepine carboxylate compounds for mild steel in 1.0 M hydrochloric acid medium. The evaluation was carried out using mass loss, electrochemical impedance spectroscopy and polarization curves measurement. Impedance diagrams and Bode plots for uninhibited and inhibited systems were analyzed using Zview program. The fitted data observed trails in nearly the same pattern as the experimental results. It is showed that triazepine carboxylate compounds are very good inhibitors for mild steel corrosion in 1.0 M hydrochloric acid medium which act as mixed-type inhibitors. So, the inhibition efficiency was increased with inhibitor concentration in the order ClâMeâCNâ>âMeâCNâ>âClâMeâCO2Et which depended on their molecular structures. Electrochemical impedance spectroscopy showed that all compounds act by the formation of a protective film at the metal surface. Surface analyses via SEM and Optical 3D profilometry were used to investigate the morphology of the steels before and after immersion in 1.0 M HCl solution containing inhibitors. The correspondence between inhibition property and molecular structure of the triazepine carboxylate compounds was investigated, using density functional theory (DFT). Experimental and DFT study was further supported by molecular dynamic simulations study.
subject: Original Article
  topic: section
subject: Ab initio calculations
  topic: keywords
subject: Computer modeling and simulation
  topic: keywords
subject: Corrosion inhibition
  topic: keywords
subject: Molecular Dynamics
  topic: keywords
subject: Optical 3D profilometry
  topic: keywords
subject: Organic compounds
  topic: keywords
subject: SEM
  topic: keywords
subject: Triazepine carboxylate derivatives
  topic: keywords
creator: K. Alaoui
creator: Y. El Kacimi
creator: M. Galai
creator: H. Serrar
creator: R. Touir
creator: S. Kaya
creator: C. Kaya
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-00199-5

Direct catalytic oxidation and removal of NO in flue gas by the micro bubbles gasâliquid dispersion system
type: item
description: The method of micro bubbles is widely applied in the fields of water and soil treatment. A novel treatment method of NO in flue gas through a gasâliquid two-phase system formed by micro bubbles is proposed in this study. The system depends on the generation of hydroxyl radicals. The NO removal performance of the micro gasâliquid dispersion system induced by catalysts and O3 was explored and the reaction pathways were elucidated. Micro bubbles, Fe2+, and Mn2+ in solution improved NO removal performance significantly. Salinity and surfactants affected the removal performance of NO by altering micro bubbles. In the presence of Fe2+, the NO removal rate reached 65.2% at pH 5, 75.8% under 0.5 g/L NaCl and 82.1% under 6 mg/L sodium dodecyl sulfate. In the presence of Mn2+, the NO removal rate reached 69.2% at pH 5, 83.2% under 0.5 g/L NaCl and 92.3% under 6 mg/L sodium dodecyl sulfate. However, in the presence of both Mn2+ and Fe2+, NO conversion rate was 93.2%. The NO removal rate in the presence of O3 was further improved under the same conditions. The study provides the basis for the application and development of micro bubbles in flue gas treatments for NO removal. The results can help to solve the problems of high operating cost, large oxidant consumption, secondary pollution, and high energy consumption in traditional NO removal methods.
subject: Original Article
  topic: section
subject: NO · Micro bubble · Oxidation · Removal · Denitration, , , , , , , , , , , , , ,
  topic: keywords
creator: Hongrui Sun
creator: Guanghui Yang
creator: Tallal Bin Aftab
creator: Fei Xue
creator: Zhengguo Xiao
creator: Qihao Guo
creator: Dengxin Li
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-00198-6

Photo-curing kinetics of hydroxyethyl acrylate (HEA): synergetic effect of dye/amine photoinitiator systems
type: item
description: The aim of this study is to examine and evaluate several dye/amine systems as photoinitiators for photopolymerization of 2-hydroxyethyl acrylate (HEA) monomer under visible light conditions. For this purpose, a series of dye/amine photoinitiators were formed using methylene blue (MB) or acridine orange (AO) as photosensitizers, and triethanolamine (TEOA), ethyl 4-(dimethylamino) benzoate (EDMAB), trioctylamine (TOA), and N,N-diméthylallylamine (DMAA) as co-initiators. The photopolymerization kinetic of the HEA monomer in the presence of proposed dye/amine systems was performed using Fourier-transform infrared spectroscopy (FTIR) analysis and the synergetic effect of the dye/amine photoinitiators systems on the photopolymerization efficiency was examined. Interestingly, (MB/EDMAB) system shows the better reactivity with a total conversion of HEA monomer.
subject: Original Article
  topic: section
subject: Amine
  topic: keywords
subject: Dye
  topic: keywords
subject: Photopolymerization
  topic: keywords
subject: Phototransformation
  topic: keywords
subject: Visible Light
  topic: keywords
creator: Nouria Bouchikhi
creator: Manel Bouazza
creator: Salah Hamri
creator: Ulrich Maschke
creator: Djahida Lerari
creator: Faycal Dergal
creator: Khaldoun Bachari
creator: Lamia Bedjaoui-Alachaher
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-00197-7

Suitability of aluminum material on sugar industry wastewater with chemical and electrochemical treatment processes
type: item
description: Aluminum is a valuable material, which can be used for water and wastewater treatment. It exists in metal as well as in salt form. The efficiency of water and wastewater treatment depends upon the technology applied to treat. Sugarcane industry is coming under those industries which have a large amount of freshwater and release large amount of effluent. The goal of this research work is to study the behavior of aluminum metal and salt for the treatment of sugar industry wastewater on chemical oxidation and electrochemical oxidation. The effect of pH, dosing, temperature and catalysis on metal and salt has been also studied with both treatment methods. The results show that maximum 90% of chemical oxygen demand and 94% of color removal can be achieved with an aluminum electrode (electrocoagulation) at optimum conditions, pH 7, current density 178 A/m2, electrode distance 20 mm, and salt solution 0.5 M NaCl. In the same way, 81% chemical oxygen demand and 85% color removal were achieved with alum for the 0.5 M lime solution, at 50 mM mass loading, 21 °C operating temperature and optimum pH of 7, respectively. The sludge generated after treatment was also analyzed with settling filtration, thermal, FTIR and SEM.
subject: Original Article
  topic: section
subject: Anode material
  topic: keywords
subject: Chemical oxygen demand
  topic: keywords
subject: Effluent
  topic: keywords
subject: Optimization
  topic: keywords
subject: Sludge
  topic: keywords
creator: Omprakash Sahu
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-00196-8

Highly dispersed cobalt FischerâTropsch synthesis catalysts supported on γ-Al2O3, CNTs, and graphene nanosheet using chemical vapor deposition
type: item
description: Highly dispersed 15.0 wt% cobalt catalysts were prepared on γ-Al2O3, carbon nanotubes (CNTs), and graphene nanosheet (GNS) using chemical vapor deposition (CVD) procedure. The physico-chemical properties of the catalysts were studied by inductively coupled plasma (ICP), BrunauerâEmmettâTeller (BET), X-ray powder diffraction (XRD), field-emission scanning electron microscopy (FESEM), and temperature-programmed reduction (TPR) techniques, and the FischerâTropsch synthesis (FTS) performance of the catalysts was assessed at 220 °C, 18 bar, H2/COâ=â2 and feed flow rate of 45 ml/min g cat. Based on BET results, Co/GNS catalyst provided highest surface area in comparison to the other catalysts. XRD and FESEM results revealed that CVD method prepared smaller particles on GNS compared to the other supports and resulted in the most dispersed metal particles on GNS according to H2-chemisorption results. The performance of Co/Al2O3 catalyst prepared by CVD method was compared with conventional 15 wt% Co/Al2O3 catalyst prepared by impregnation method. The Co/Al2O3 catalyst prepared with CVD method showed 5.3% higher %CO conversion and 2.1% lower C5+ selectivity as compared with the Co/Al2O3 catalysts prepared by impregnation method. Among three catalysts prepared by CVD, Co/GNS showed higher %CO conversion of 78.4% and C5+ selectivity of 70.3%. Co/γ-Al2O3 catalyst showed higher stability.
subject: Original Article
  topic: section
subject: Activity
  topic: keywords
subject: Chemical vapor deposition
  topic: keywords
subject: Cobalt
  topic: keywords
subject: Dispersion
  topic: keywords
subject: Selectivity
  topic: keywords
creator: Iraj Kazemnejad
creator: Alireza Feizbakhsh
creator: Ali Niazi
creator: Ahmad Tavasoli
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-00195-9

Corrosion inhibition and adsorption behavior of phytic acid on Pb and PbâIn alloy surfaces in acidic chloride solution
type: item
description: The corrosion and corrosion inhibition of Pb and PbâIn alloys in HCl solution, were investigated. The study was performed in the absence and presence of the phytic acid (PA) inhibitor using potentiodynamic polarization and electrochemical impedance spectroscopy measurements, and complementary by scanning electron microscope (SEM) and X-ray spectroscopy analysis (EDX) investigations. The obtained outcomes showed that the PA is efficient corrosion inhibitor for Pb and PbâIn alloys in HCl solution. The inhibition efficiency (η %) for Pb and its investigated alloys increases with an increase in the concentration of PA and decreases with increasing temperature. The maximum inhibition efficiency (ââ80%) was obtained at 1âÃâ10â3 M of the PA inhibitor. Langmuir adsorption isotherm fits well the experimental data. SEM/EDX observations of the electrode surface confirmed the existence of an adsorbed film. One can conclude that the increase in activation energy with increasing additive concentration, in addition to the decrease in η % in the presence of inhibitor with temperature, is suggestive of physical adsorption of the inhibitor molecules on the surface of Pb and Pbâ0.5In alloy.
subject: Original Article
  topic: section
subject: Acid corrosion
  topic: keywords
subject: EIS
  topic: keywords
subject: In alloy
  topic: keywords
subject: Pb
  topic: keywords
subject: Phytic acid
  topic: keywords
subject: Polarization
  topic: keywords
creator: Hany M. Abd ElâLateef
creator: AbdelâRahman ElâSayed
creator: Hossnia S. Mohran
creator: Hoda A. El-Shafy Shilkamy
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-0169-4

Modeling, simulation and optimal control strategy for batch fermentation processes
type: item
description: The use of fermenters at large scale is usually hampered by sub-optimal conditions in terms of yield and productivity, along with the low tolerance of strains to process stresses, such as substrate and product toxicity, and other fermentation inhibitors. Attempts to improve the industrial efficacy of fermenters have been in the areas of genetic engineering to improve strain tolerance, but this usually involves detailed and unfeasible mechanistic studies. Statistical designs of experiments have also been used to optimize industrial fermenters but this again often results in local optima due to the relatively small-dimensional space covered by the experiments. Mathematical techniques have recorded great successes and regarding ethanol fermentation with sorghum extracts, previous work has modeled and established the presence of product inhibition, however, did not consider other degrees of freedom (temperature and pH) that minimize the effect of such inhibitions. This paper includes the description of a batch alcohol fermentation process that has been optimized using a technique based on the application of mathematical modeling and optimal control. Calculus of variation is introduced as a valuable tool to derive and solve the necessary conditions for optimality, and the obtained results show the optimal temperature and pH profiles for the fermentation of sorghum extracts. A Simulink model of the fermentation process shows that using the proposed control strategy increases ethanol yield by 14.18%, cell growth by 71.96% decreases the residual substrate by 84.77%.
subject: Original Article
  topic: section
creator: Neba Fabrice Abunde
creator: Nana Yaw Asiedu
creator: OICC Author
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-0172-9

Graphene oxideâFe2V4O13 hybrid material as highly efficient hetero-Fenton catalyst for degradation of methyl orange
type: item
description: A new hetero-Fenton type GO/Fe2V4O13 was developed and characterized by FT-IR, XRD, HR-SEM, TEM, and UV-DRS analysis. XRD pattern reveals the presence of monoclinic phase of Fe2V4O13 in the catalyst. TEM images show the particle sizes in the range from 20 to 100 nm and the nice dispersion of nanosized Fe2V4O13 particles on the surface of the graphene oxide. The hetero-Fenton catalyst was used for the degradation of Methyl orange (MO) under UV and solar light. The mineralization rate was influenced by H2O2 concentration, pH, and catalyst loading. The reusability 21% GO/Fe2V4O13 was analyzed. GO/Fe2V4O13 was stable and reusable up to five cycles with 95% degradation. Solar experiments were carried out at different initial solution pH with Fe2V4O13 and 21% GO/Fe2V4O13. Both catalysts show maximum degradation efficiency at pH 6. Mechanism of heterophoto-Fenton process is also proposed. This study reveals that Fe2V4O13 and 21% GO/Fe2V4O13 catalysts are efficient under UV and solar light for the degradation MO and can be utilized for the treatment of dye wastewater.
subject: Original Article
  topic: section
subject: Fe2V4O13
  topic: keywords
subject: Fenton reaction
  topic: keywords
subject: Graphene oxide
  topic: keywords
subject: Hetero
  topic: keywords
subject: Photocatalysis
  topic: keywords
subject: Wastewater treatment
  topic: keywords
creator: Inbasekaran Muthuvel
creator: Kaliyamoorthy Gowthami
creator: Ganesamoorthy Thirunarayanan
creator: Palusamy Suppuraj
creator: Balu Krishnakumar
creator: Abílio José Fraga Do Nascimento Sobral
creator: Meenakshisundaram Swaminathan
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-0173-8

Inhibitory effect of Senecio anteuphorbium as green corrosion inhibitor for S300 steel
type: item
description: The present work proposes the study of the extract of Senecio anteuphorbium (SA) as green corrosion inhibitor. This inhibitory effect of SA extract on the corrosion of S300 steel in hydrochloric acid 1âM has been evaluated by using the potentiodynamic polarization and electrochemical impedance spectroscopy. From the outcome of the polarization curves, SA extract acts as mixed-type inhibitor. The inhibition efficiency increased with the extract concentration increase to achieve a maximum of 91% at 30 mg/L. The adsorption of the inhibitor on the steel surface follows Langmuir isotherm and the values of activation energy suggested that the adsorption of inhibitor is a physicalâchemical adsorption. Kinetic parameters such as enthalpy, activation energy and entropy were determined and discussed. The surface morphology of steel was observed before and after adding inhibitor by Fourier transform infrared spectroscopy. The changes in contact angles identified the formation of the protective film. Scanning electron microscopy and energy-dispersive X-ray revealed the adsorption of the same organic compounds of the extract on the interface metal/solution.
subject: Original Article
  topic: section
subject: Adsorption
  topic: keywords
subject: Corrosion
  topic: keywords
subject: Green inhibitor
  topic: keywords
subject: Langmuir
  topic: keywords
subject: Steel
  topic: keywords
creator: R. Idouhli
creator: Y. Koumya
creator: M. Khadiri
creator: A. Aityoub
creator: A. Abouelfida
creator: A. Benyaich
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-0179-2

Amine contaminants removal using alginate clay hybrid composites and its effect on foaming
type: item
description: Heat stable salts such as total organic acids (TOA) and heavy metals are well known contaminants in the acid gas removal systems operating using alkanolamines such as methyldiethanolamine (MDEA, 50 wt%). Decontamination of TOA and heavy metals from lean MDEA always remain as a challenge to the gas industry, as accumulation of TOA deteriorates the solvent quality, weakens the absorption capacity and enhances foaming problems leading to huge loss of MDEA and presence of heavy metals results in corrosion and fouling of equipment. Equilibrium batch adsorption were carried out using calcium alginate clay hybrid composites (CAH) containing sepiolite and bentonite for assessing the sorption performance of TOA and heavy metals such as chromium and iron from industrial lean MDEA solutions. The physiochemical properties of the adsorbent were elucidated using SEM, EDX and FTIR analysis. The effects of operational parameters such as amount of sorbent, contact time and temperature on the sorption capacity were also investigated. Kinetics results indicated that the chemisorption nature. The pseudo-second order model gave the best fit. The adsorption efficiency increased with increasing the temperature. Adsorption followed type VI isotherm according to the IUPAC classification, with sorption taking place in different stages. Regeneration studies revealed that 4% CaCl2 acts as an effective eluting agent and no reduction in capacity was observed even after 3 cycles of regeneration. Foaming studies carried out with treated lean MDEA confirmed the reduction in foam of MDEA solutions owing to the effective removal of foam creators such as TOA from lean MDEA by CAH composites. A 15.8% reduction in TOA content was found to decrease the foam height by 37.5%. Thus, CAH composites containing bentonite and sepiolite are having the potential to reclaim industrial lean MDEA solutions.
subject: Original Article
  topic: section
subject: Adsorption
  topic: keywords
subject: Alginate
  topic: keywords
subject: Clay composites
  topic: keywords
subject: Foaming
  topic: keywords
subject: Lean amine
  topic: keywords
creator: Anjali Achazhiyath Edathil
creator: Priyabrata Pal
creator: Fawzi Banat
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-0180-9

Synthesis and investigations of heterocyclic compounds as corrosion inhibitors for mild steel in hydrochloric acid
type: item
description: The corrosion inhibition of mild steel in 0.5 M hydrochloric acid by six synthesized heterocyclic compounds was studied using weight loss measurements. The inhibition efficiency exceeded 95%. The excellent inhibitor performance was attributed to the formation of protection adsorption films on the steel surface. The structures of compounds were confirmed by Fourier transform infrared and nuclear magnetic resonance analysis. The adsorption of inhibitor on steel surface followed the Langmuir adsorption isotherm. Quantum chemical calculations were also adopted to clarify the inhibition mechanism.
subject: Original Article
  topic: section
subject: Corrosion
  topic: keywords
subject: FT
  topic: keywords
subject: Inhibition
  topic: keywords
subject: IR
  topic: keywords
subject: Steel
  topic: keywords
subject: Synthesis
  topic: keywords
subject: Weight loss
  topic: keywords
creator: Salima K. Ahmed
creator: Wassan B. Ali
creator: Anees A. Khadom
rights: Copyright (c)
date: 2023-11-17
publication date: 2023-11-17
doi: https://doi.org/10.1007/s40090-019-0181-8