Mohammad Ali Nasseri - Department of Chemistry, Faculty of Sciences, University of Birjand, Birjand ۹۷۱۷۵-۶۱۵, Iran
Simin Ramezani Moghadam Mashhadi - Department of Chemistry, Faculty of Sciences, University of Birjand, Birjand ۹۷۱۷۵-۶۱۵, Iran
Milad kazemnejadi - Department of Chemistry, Faculty of Sciences, University of Birjand, Birjand ۹۷۱۷۵-۶۱۵, Iran
Ali Allahresani - Department of Chemistry, Faculty of Sciences, University of Birjand, Birjand ۹۷۱۷۵-۶۱۵, Iran

A cobalt complex of a synthetic poly -amino acid was immobilized on Fe3O4-doped graphene oxide (GO/Fe3O4@PAA Co(II)) and was used as a highly efficient catalyst for the oxidation of bezyl alcohols under mild conditions. PAA was synthesized through a multi-step synthesis, first by a poly condensation reaction of salicylaldehyde followed by the Strecker synthesis. The synthesized nanocomposite was characterized by different methods including FTIR, ICP, XRD, EDX, XPS, FE-SEM, TEM, TGA, VSM and DLS analyses. A wide variety of benzyl alcohols could be tolerated toward oxidation to the corresponding aldehyde in the presence of molecular oxygen without the need for any co-reductant. The magnetic nanocomposite could be readily separated by a magnet from the mixture and reused for several times without any significant reactivity loss, which represents its potential for practical and industrial application.

Graphene oxide, Benzyl alcohols, Fe3O4, Nanocatalyst, Magnetically recyclable