非自由基路线活化过硫酸盐的研究现状

Advanced Progresses on Activation of Persulfates through Non-radical Pathway

在过一硫酸盐(简称PMS)和过二硫酸盐(简称PDS)的高级氧化技术中,非自由基路线具有高选择性氧化、有毒副产物少(如氯离子存在时)以及对催化剂结构破坏小等优点。过硫酸盐本身很难直接降解有机污染物,因而活化过硫酸盐是一个必不可少的步骤。简述了金属基和碳基材料活化过硫酸盐降解水中有机污染物的研究现状,重点阐述了非自由基路线。针对各自的优缺点,展望了未来发展方向。

In advanced oxidation processes of peroxymonosulfate( PMS) and peroxydisulfate( PDS),the non-radical pathway has many merits,such as highly selective oxidation,less by-products and the less damage for catalyst structure. It is extremely difficult for persulfates to directly degrade organic compounds,and therefore it is an essential step to activate persulfates. The advanced progresses of metal-based and carbon-based materials for activating persulfates in the past few years were mainly introduced,and the non-radical pathway for the degradation of organic compounds in water was focused. Finally, the development of the future was proposed on the basis of their advantages and disadvantages.