Nanochemistry
Ebrahim Teymoori; Abolghasem Davoodnia; Amir Khojastehnezhad; Nasrinsadat Hosseininasab
Abstract
In this research, a new magnetic nanocatalyst CuFe2O4@Si-Imid-PMo containing acidic ionic liquid based on imidazolium cation and phosphomolybdic acid anion immobilized on CuFe2O4@SiO2 magnetic nanoparticles was prepared and characterized using FT-IR, EDX, SEM, and VSM techniques. Then, the catalytic ...
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In this research, a new magnetic nanocatalyst CuFe2O4@Si-Imid-PMo containing acidic ionic liquid based on imidazolium cation and phosphomolybdic acid anion immobilized on CuFe2O4@SiO2 magnetic nanoparticles was prepared and characterized using FT-IR, EDX, SEM, and VSM techniques. Then, the catalytic activity of CuFe2O4@Si-Imid-PMo was evaluated in the synthesis of 2,4,5-trisubstituted imidazoles. The results showed that the catalyst has high activity and the desired products were obtained in high yields within short reaction times. The best result was obtained at 120 °C in the presence of 0.02 g of the catalyst under solvent-free conditions. The catalyst was also readily recovered by a external magnetic and can be used for several times without substantial reduction in its catalytic activity.
Nanochemistry
Fatemeh Mostaghni; Ali Daneshvar; Majid Sakhaie
Volume 5, Issue 4, pp. 364-493, Serial No. 17 , October 2017, , Pages 429-435
Abstract
Green synthesis of nanoparticles makes use of environmental friendly, non-toxic and safe reagents. In this study, we synthesised CoFe2O4 in a green approach, using leaf extract of Chenopodium album. The structure of the synthesised sample were analyzed by X-ray diffraction methods. The synthesised Photocatalyst ...
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Green synthesis of nanoparticles makes use of environmental friendly, non-toxic and safe reagents. In this study, we synthesised CoFe2O4 in a green approach, using leaf extract of Chenopodium album. The structure of the synthesised sample were analyzed by X-ray diffraction methods. The synthesised Photocatalyst was applied for photo degradation of methy orange as a reliable model pollutant. The results indicated that CoFe2O4 exhibited good efficiency for the degradation of MO under UV light irradiation; the degradation ratio reached to 100% after 3 h irradiation. In addition, easy separation of the catalysts from the treated wastewater by magnetic separation, makes it available for flow-bed technologies.