Degradation of Methylene Blue Using Fe-ZSM-5 Zeolite as a Heterogeneous Fenton Catalyst

Abstract

Abstract A Fe 2 O 3 modified ZSM-5 hybrid was synthesized by solid phase exchange method in this work. The prepared Fe-ZSM-5 material was characterized by XRD and SEM and was used as a heterogeneous Fenton catalyst in oxidation of methylene blue. The influences of different parameters such as the initial pH value, the amount of catalyst, amount of H 2 O 2 , contact time and reaction temperature on the removal rate of methylene blue were evaluated. Results showed that under the optimum conditions of catalyst dosage of 1.1 g/L, initial pH value of 3.0, reaction temperature of 30°Cand H 2 O 2 30 mmol/L, 98.2% of decolorization rate could be achieved in 60 minutes. This work provides a promising catalyst for the decolorization of methylene blue in aqueous solution.