关键词: Fe-Ce/ZSM-5, Fenton催化剂, H2O2, 废水, 甲基橙

Abstract:

A new type ordered microporous Fenton-like Fe-Ce/ZSM-5 catalyst was prepared by pore-volume impregnation method and characterized by FT-IR and N2 adsorption/desorption method. The methyl orange as a simulative waste water and H2O2 as an oxidant were used to investigate the effect of operation factors on performance of the Fenton catalyst for methyl orange removal. The factors tested include feed pH，methyl orange concentration，dosage of the Fenton catalyst, H2O2 concentration, and reaction temperature. The characterizations indicate that Fe-Ce/ZSM-5 catalyst retains the framework of ZSM-5 and possesses a relative larger surface area. The results show that the methyl orange removal is 87% and the iron ion loss is only 0.019 mg/L at conditions of feed pH 5.0，methyl orange concentration 100 mg/L, catalyst dosage 1.0 g/L，H2O2 concentration 20 mmol/L , and reaction temperature 20 °C.

Key words: Fe-Ce/ZSM-5, Fenton catalyst, H2O2, waste water, methyl orange