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Samira Arefi Oskoui,Vahid Vatanpour,Alireza Khataee 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.41 No.-
Mg-Al nanolayered double hydroxide (Mg-Al NLDH) as a hydrophilic filler was used to develop a highfluxPVDF-based ultrafiltration membrane. The prepared blended membranes were characterized usingSEM, EDAX, AFM and water contact angle techniques. The results indicated that the pure water flux wassignificantly increased from 473.8 L/m2 h for the bare (M-0) to 702.2 L/m2 h for blended membranecontaining 0.5 wt% of Mg-Al NLDH (M-0.5). The performance of the bare and optimum membranecontaining 0.5 wt% of NLDH was investigated for whey protein concentration, and the results indicatedthat the blended membrane had better antifouling property.
Mahdie Safarpour,Samira Arefi Oskoui,Alireza Khataee 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.82 No.-
Recently, ultrathin two-dimensional (2D) materials, known as nanosheets, have attracted great interestowning to their ultimate structural and desirable physical, chemical, thermal, electrical, and opticalcharacteristics. Various potential applications of 2D nanomaterials have been reported in electronics/optoelectronics, electrocatalysis, batteries, supercapacitors, solar cells, sensors, photocatalysis, and otherenvironmental processes. Modification of polymeric membranes using nanosheets is increasinglyreported in the literature. The incorporation of inorganic nanostructured additives, such as metal oxideand metal hydroxide nanosheets, can impart desired characteristics to the surface and matrix of themembrane and improves itsfiltration performance. This review summarizes the preparation methods ofthe metal oxide and metal hydroxide nanosheets, with a special emphasis on the recent advances in thisfield. The structural and physicochemical properties of the 2D nanosheets have been discussed, and afterthat, the applications of these nanosheets for modification of polymeric membranes are presented with afocus on the membranes used for environmental applications. Finally, the existing challenges and futureperspectives for synthesis and membrane-related applications of 2D metal oxide and metal hydroxidenanosheets are discussed.
Alireza Khataee,Samira Arefi Oskoui,Mehrangiz Fathinia,Arezoo Fazli,Ali Shahedi Hojaghan,요네스피로즈살라리,주상우 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.30 No.-
Undoped and Gd-doped PbSe nanoparticles were synthesized through a simple hydrothermal method. The photocatalytic activity of the catalysts was evaluated through the degradation of sulfasalazine (SSZ)under visible light irradiation. Synthesized nanoparticles were characterized by SEM, XRD, and XPStechniques. The photocatalytic degradation efficiency of SSZ in the presence of 8% Gd-doped PbSe(80.67%) was higher than that of undoped PbSe (42%). The order of the inhibitory effect of differentinorganic ions was HCO3> Cl > SO42 > F . The photocatalytic degradation intermediates wereidentified using GC–MS. Phytotoxicity of SSZ and its intermediates formed in photocatalytic processwere evaluated.
Seyed Ali Hosseini,Aligholi Niaei,Dariush Salari,Samira Arefi Oskoui 한국공업화학회 2013 Journal of Industrial and Engineering Chemistry Vol.19 No.6
The correlation between physical–chemical properties and activities of LaB0.5Co0.5O3 (B = Cr, Mn, Cu)nano perovskites was studied in combustion of toluene. LaMn0.5Co0.5O3 showed the highest activity among LaB0.5Co0.5O3 catalysts and further optimization study was focused on LaMnxCo1-xO3 (x = 0.1,0.25, 0.5). The activity and reducibility of catalysts improved due to partial substitution of Co3+ by B cation. No direct relationship was between surface area and catalyst activity. T50% of 2-propanol over LaMn0.25Co0.75O3, LaMn0.5Co0.5O3, LaMn0.1Co0.9O3 and LaCoO3 was 168, 200, 220 and 229 8C,respectively. LaMn0.25Co0.75O3 was the optimum catalyst and showed robust stability in combustion of toluene and 2-propanol.