SIMPLE SYNTHESIS OF UNIFORM α-Fe2O3 MICROSPHERES WITH EXCELLENT PHOTOCATALYTIC PERFORMANCE USING POLY (N-VINYL-2-PYRROLIDONE)

Abstract

In this paper, a new simple approach has been developed for the preparation of α- Fe 2 O 3 microspheres by a facile hydrothermal method using PVP as a surfactant. Uniform α- Fe 2 O 3 microspheres could be routinely synthesized through solvothermal approach by controlling the PVP/ FeCl 3⋅6 H 2 O ratio. The as-obtained α- Fe 2 O 3 microspheres exhibit high efficiency on the decolorization of RhB aqueous solution in the presence of H 2 O 2 at room temperature.