TY - EJOUR
AU - Abdollahi, Fatemeh
AU - Yousefi, Mohammad
AU - Rashidzadeh, Mahdi
AU - Irandoukht, Akbar
AU - Salehirad, Fathollah
PY - 2024
DA - February
TI - Influence of synthesis parameters on the properties of nanostructured γ-Alumina using plackett-burman experimental design
T2 - International Journal of Nano Dimension (Int. J. Nano Dimens.)
VL - 9
L1 - https://oiccpress.com/international-journal-of-nano-dimension/article/influence-of-synthesis-parameters-on-the-properties-of-nanostructured-%ce%b3-alumina-using-plackett-burman-experimental-design/
N2 - Mesoporous nanostructured γ-Al2O3 powders were synthesized through multi- step precipitation procedures using the pH-swing technique. Structural and morphological characteristics in addition to the thermal behavior of the procured samples were characterized via X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), fourier transform infrared (FT-IR) spectroscopy, thermogravimetry-derivative thermal gravimetric       (TG-DTG) and N2 adsorption–desorption isotherm. Plackett-Burman design was implemented as a screening method to examine the impacts of fifteen variables on physical properties of synthesized γ-Al2O3 as a response variable. Specific surface area, pore volume and average pore diameter of the prepared samples were found to be within the ranges of 72-335.7 m2/g, 0.26-1.03 cm2/g and 4.6-15.2 nm, respectively. It was determined that the variables including pH value on the acidic region, time in the alkaline region and number of pH-swing frequencies had major effects on the pore diameter of the procured γ-Al2O3 powders. Calcination by steaming had the most significant effect on specific surface area, while the pH value on the acidic region had the greatest impact on pore volume.
IS - 4
PB - OICC Press
KW - Mesoporous, Multi-step precipitation, nanostructure, pH-swing, Plackett-Burman 
EN -