Immobilization of Pt nanoparticles on magnetite–poly (epoxyamine) nanocomposite for the reduction of p-nitrophenol

Abstract

Recently the magnetic nanoparticle earns more attention in the field of catalysis for their enhanced loading capacity and magnetic recylability. In this study, we intended to focus the synthesis of polymer coated iron oxide nanoparticle as support for the immobilization of metal nanoparticles. The typical synthetic statergy involves the synthesis of 1,4-diaminobutane functionalized superparamagnetic Fe3O4 nanoparticle, followed by epoxyamine polymer coating on amine functionalised Fe3O4 using 1,4 diaminobutane and epichlorohydrin monomers through one pot method. Further, ultrafine Pt nanoparticle was immobilised onto poly (epoxyamine) coated Fe3O4. These materials were characterized using FT-IR, XRD, VSM, EDS, SEM HRTEM etc. The semiheterogenous catalytic efficiency of the material was examined in aqueous phase reduction of p-nitrophenol. The catalyst was reused up to 5 times without loss of activity.