Efficient performance of porous Fe2O3 in heterogeneous activation of peroxymonosulfate for decolorization of Rhodamine B.

Highlights: [•] Fe2O3 was used as heterogeneous catalyst to activate PMS for oxidation of dye. [•] The as-prepared sample presented bread crumb-like and porous morphology. [•] The porous Fe2O3/PMS system exhibited high activity in decolorization of dye. [•] The porous structure and the great surface area enhanced the catalytic activity. [•] The catalyst had good stability and reusability. [ABSTRACT FROM AUTHOR]