Heterogeneous Catalytic Degradation of Methyl Orange by H2O2 with FeS Micro-flakes

Shaoming Zeng

doi:10.6919/ICJE.202505_11(5).0038

Authors

Shaoming Zeng

DOI:

https://doi.org/10.6919/ICJE.202505_11(5).0038

Keywords:

FeS Micro-flakes; Fenton Reaction; Degradation; MO.

Abstract

Organic dyes are common water pollutants that harm both the environment and human health. This study addressed this issue by synthesizing FeS as a heterogeneous catalyst, using methyl orange (MO) as the target pollutant and H₂O₂ as the oxidant. The degradation performance of FeS was examined. Experimental results demonstrated that, without pH adjustment and at 30 °C, the synergistic effect of 0.8 g/L FeS and 20 mM H₂O₂achieved over 90% degradation of MO within 10 minutes and nearly complete removal of MO within 20 minutes. Moreover, high degradation efficiency was achieved over a wide pH range (2 ~ 7.5). This work offers a new and efficient approach for treating dye-containing wastewater.

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