羟胺强化催化剂/过硫酸盐体系降解水中有机污染物研究进展

Advances Degradation of Organic Pollutants in Aqueous Solutions Using Persulfate Systems Catalyzed by Catalysts with Enhancement of Hydroxylamine

羟胺因可以促进Fe^(2+)/Fe^(3+)循环和提高对目标污染物的去除效果而广泛应用于过硫酸盐高级氧化技术。首先综述了羟胺强化催化剂/过硫酸盐体系对各目标有机污染物的降解效率,然后比较了羟胺驱动的均相催化剂/过硫酸盐体系和非均相催化剂/过硫酸盐体系的机理,在此基础上讨论分析了羟胺的添加量、pH和水中阴离子等关键因素对羟胺/催化剂/过硫酸盐体系降解有机污染物性能和机制的影响。最后,归纳总结了该领域面临的挑战,展望了其发展前景。

Hydroxylamine(HA)is widely used in persulfate(PS)-based advanced oxidation processes due to its ability to promote Fe^(2+)/Fe^(3+)cycling and improve the removal efficiency of target pollutants.In this review,the degradation efficiency of various target organic pollutants by hydroxylamine enhanced catalyst/persulfate system were summarized.The mechanism of homogeneous/PS system and heterogeneous/PS systems driven by hydroxylamine were compared.The effects of the hydroxylamine dosages,pH values,and anions in water on the degradation of organic pollutants by HA/catalyst/PS system were discussed.Finally,the challenges and prospects faced in this field were proposed.