A terpolymer resin derived from Resorcinol, Formaldehyde and Salicylic acid was synthesized through condensation reaction. Transition metal ions namely Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) were incorporated into the resin forming polymer-metal complexes. Both the resin and the complexes were characterized by FTIR, UV–Vis., XRD, 1H NMR, TGA and SEM/EDX. Elemental analysis was carried out […]
This work deals with the preparation of polyacetal (PAC)/graphene nano-platelets (GNP) and/or polypyrrole (PPY) in the presence of cobalt acetate-based composites. These materials were simply prepared via in situ emulsion in combination with sonication strategy technique. The resulting composites were characterized via Fourier transform infrared spectroscopy, thermogravimetric analysis, transmitting electron microscope, and particle size distribution […]
The anatase TiO2-supported Ni–Cu bimetallic catalyst was prepared by Co-impregnation method and after shaping by three binders (bentonite, polyethylene glycol and poly vinyl alcohol) into extrudes, the effect of calcining temperature (200 °C, 400 °C, 600 °C and 800 °C) and calcining time (1, 3, 5 and 7 h) on the extrudes were investigated. According to the obtained results, the […]
ZnMnO3/Fe3O4 magnetic nanocomposites were fabricated via facile co-precipitation route and were calcined at 400 °C for 3 h. Synthesis of ZnMnO3/Fe3O4 magnetic nanocomposites were optimized by different weight percentages. Then, the as-synthesized sample was characterized by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), photoluminescence(PL), vibrating Sample Magnetometer (VSM), EDAX (Energy dispersive X-ray analysis), diffuse reflectance UV–Vis spectroscopy […]
The oxidation of sulfide-based ores is industrially relevant as it facilitates the extraction of valuable metals and eliminates undesired elements from an ore. Even though oxidation can be done thermally (pyrometallurgy), solution-based (hydrometallurgical) methods are currently sought as they represent a more sustainable option. Here, the leaching of a sulfide ore (32% Fe, 2% Cu) […]
The standard method (ISO 4264) for determining the cetane index of hydrogenated gas oil is time-consuming and expensive for routine laboratory tests. Conversely, near infrared (NIR) and Raman spectroscopies are high-speed and cost-effective techniques. In this study, these tools were used to create two models for the determination of the hydrogenated gas oil cetane index. […]
The commercially available bleach activator, N,N,N′,N′-tetraacetylethylenediamine (TAED), has been widely used in laundry detergents to enable efficient low-temperature bleaching. However, the competitive hydrolysis of TAED limits its use in liquid detergents. Herein we report the synthesis of two TAED derivatives, N,N,N′,N′-tetracetylpropylene-1,2-diamine (TA(Me)ED) and N,N,N′-triacetylpropylene-1,2-diamine (TriA(Me)ED), through the acetylation of propylene-1,2-diamine. The hydrolytic and perhydrolytic activity […]
Fe-doped Bi2WO6/CeO2 nanocomposite materials were prepared by co-precipitation and hydrothermal methods. The physicochemical properties and photocatalytic activities of Bi2WO6/CeO2 nanocomposites after doping with Fe3+ ions were systematically investigated. The 0.2Fe-doped Bi2WO6/CeO2 nanocomposites exhibited the optimal photocatalytic activity in the degradation of rhodamine B (RhB), reaching to 62% degradation after 120 min irradiation, which was 10.3 and […]
Building insulators reducing the natural gas required for interior heating or heating load reduction, have a positive impact on energy saving. Paints containing nano-silica aerogel can be applied as façade coatings and building insulators. In this study, the heating load was assessed for a building in a Mediterranean climate. Acrylic paint containing nano-silica aerogel was […]
Mineral scale deposit is one of the major problems incessantly faced in the oil and gas producing wells and surface facilities, and if not well-handled can cause an unsuccessful petroleum production. To eradicate scale deposits, scale inhibitors (SIs) are commonly deployed into industrial water systems. Because of effectiveness and long squeeze lifetimes, organic phosphonate SIs […]
