The greatest constraint in the advanced oxidation processes involved Fe(II)/PMS was the low utilization of Fe(II) and PMS. In the present study, the co-catalytic effect of WS₂ on the Fe(II)/PMS system for the degradation of organics was investigated. In the presence of WS₂, Fe(III) was reduced to Fe(II) during the reaction and resulted in improved decomposition of PMS as well as the degradation of 4-chloriphenol (4-CP). The decomposition rate of PMS and degradation efficiency of 4-CP were 10% and 25% in the Fe(II)/PMS process, while the efficiencies respectively increased to 99% and 100% in the WS₂ assisted Fe(II)/PMS system. The degradation of 4-CP was completed via the free radical pathway and SO₄•^- played a more important role than other active species. Low concentration of inorganic ions such as Cl^- and HCO₃^- exhibited irrelevant effect while humic acid showed significant suppression on the WS₂/Fe(II)/PMS system. Additionally, characterization and recycle results implied that WS₂ maintained a good stability during the co-catalytic processes.

在涉及Fe（II）/ PMS的高级氧化工艺中，最大的制约因素是Fe（II）和PMS的利用率低。在本研究中，研究了WS ₂对Fe（II）/ PMS系统对有机物降解的共催化作用。在WS ₂的存在下，Fe（III）在反应过程中还原为Fe（II），导致PMS的分解得到改善，4-氯苯酚（4-CP）降解。Fe（II）/ PMS工艺中PMS的分解率和4-CP的降解效率分别为10％和25％，而WS ₂辅助Fe（II）/ PMS中PMS的分解效率分别为99％和100％系统。4-CP的降解通过自由基途径和SO ₄ • ^-完成。发挥了比其他活跃物种更重要的作用。无机离子如Cl的低浓度^-和HCO ₃ ^- ，而腐殖酸显示对WS显著抑制发挥效果无关₂ /铁（II）/ PMS系统。此外，表征和再循环结果表明WS ₂在共催化过程中保持了良好的稳定性。