Author/Authors :
Ramazani، Ali نويسنده Department of Chemistry, University of Zanjan, P O Box 45195-313, Zanjan, Iran. , , Sadri، Fariba نويسنده Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran , , Massoudi، Abdolhossain نويسنده Department of Chemistry, Payame Noor University, P.O. Box 19395-3697, Tehran, Iran , , Khoobi، Mehdi نويسنده Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran 14176, Iran , , Joo، Sang-Woo نويسنده , , Dolatyari، Leila نويسنده Department of Chemistry, Zanjan Branch, Islamic Azad University, P O Box 49195-467, Zanjan, Iran , , Dayyani، Nahid نويسنده Department of Chemistry, University of Zanjan, P O Box 45195-313, Zanjan, Iran ,
Abstract :
Zinc ferrite (ZnFe2O4) nanoparticles were synthesized via the auto-combustion assisted sol-gel method of Zn2+ and Fe3+ ions (molar ratio 1:2) in ammonia solution. The prepared nanomagnetic catalyst was characterized by IR, XRD, SEM and ICP. The diameter of the ZnFe2O4 MNPs (63.7 nm) was determined by Debye-Scherre equation via their XRD pattern. Nanomagnetic ZnFe2O4 efficiently catalyzes oxidation of alcohols and gave the corresponding carbonyl-containing products in good yields. The reactions were carried out in an aqueous medium at r.t in the presence of oxone (potassium hydrogen monopersulfate) as an oxidant. In addition, the catalysts could be reused up to 5 runs without significant loss of activities.
