Abstract
α-Fe2O3 nanoparticles (NPs) were synthesized by homogeneous chemical precipitation followed by calcination. Size-tuning of NPs was achieved by using polyethylene glycol with a molecular weight of 400 and 4000 as surfactant. Synthesized α-Fe2O3 NPs were characterized by powder XRD, transmission electron microscopy, N2 adsorption–desorption isotherm and vibrating sample magnetometry. These α-Fe2O3 NPs were used as magnetically recoverable catalyst in oxidation of benzyl alcohols to aldehydes with periodic acid. The catalyst showed higher efficiency with decrease in their sizes.
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