固相钴基催化剂活化过一硫酸盐在水处理中的研究进展

Research progress of peroxymonosulfate activated by solid-phase cobaltbased catalyst in water treatment

固相钴基催化剂驱动的过一硫酸盐(PMS)高级氧化技术,由于其高催化活性和易于从水中分离的优势,近年来受到了研究人员的广泛关注。本文回顾了近年来用于过一硫酸盐活化的固相钴基催化剂的研究进展,总结了钴基催化剂的种类和催化剂开发过程中采取的改性措施,汇总了钴基过一硫酸盐高级氧化技术在难降解有机污染物削减方面的应用,并分析了多种水质环境因素对削减效能的影响作用,同时阐述了钴基催化剂活化过一硫酸盐的氧化机理。最后,展望了固相钴基催化剂在未来研究中有望往大尺度、低泄漏、高循环、低能耗、具有磁效应或与膜反应器相结合的方向进一步发展。

Advanced oxidation technology using peroxymonosulfate driven by solid-phase cobalt-based catalysts has received extensive attention from researchers in recent years due to its high catalytic activity and easy separation from water.This article reviewed the research progress of the solid-phase cobalt-based catalysts for peroxymonosulfate activation in recent years,and summarized the types of the cobalt-based catalysts and their modification methods.The applications of advanced oxidation technology with cobaltbased persulfate in the reduction of refractory organic pollutants were introduced,and the effects of various water quality environmental factors on the reduction efficiency were analyzed.Further,the oxidation mechanism of the cobalt-based catalyst activated peroxymonosulfate was explained.Finally,the future development of solid-phase cobalt-based catalysts is expected to move towards large-scale,low leakage,highcirculation,lowenergyconsumption,havingmagneticeffects,orintegrationwithmembranereactors.