The Synthesis and Fenton Catalytic Performance of the Fe/S Coupling Catalyst

FeSO₄ and Na₂S were synthesized into a composite Fenton catalyst with low temperature vacuum freeze-drying. It is composed of NaFe₂OH(SO₃)₂·H₂O, FeS and FeS₂. The composite was characterized with XRD and XPS. Then phenol was used as the target organic pollutant to study the composite's catalytic degradation of it. The results showed that the removal rate of phenol reached 97% after 30 min degradation under the conditions of 1 g/L phenol, 0.3 g/L catalyst, 50 mmol/L H₂O₂ and pH 4.0, indicating that the Fenton catalyst had a good performance in the removal of high-concentration phenol. This composite can have a good prospect of application in organic pollutant removal.