摘要
分析了石墨相氮化碳(g-C_(3)N_(4))活化过硫酸盐的作用机制(自由基机制和非自由基机制);综述了近几年国内外利用元素掺杂、异质结构建、贵金属沉积等方法改性g-C_(3)N_(4)活化过硫酸盐降解有机污染物的研究进展;展望了g-C_(3)N_(4)活化过硫酸盐降解有机污染物未来的研究方向,指出:g-C_(3)N_(4)可见光捕获能力和稳定性有待进一步提高,需重点研究降解产物的毒性及金属离子浸出的影响,探讨降解有机污染物过程中自由基与非自由基的联系与区别。
The mechanism(free radical mechanism and non free radical mechanism)of graphite carbon nitride(g-C_(3)N_(4))activating persulfate is analyzed.The research progress in degradation of organic pollutants by activating persulfate with g-C_(3)N_(4) modified by means of element doping,heterostructure building and precious metal deposition at home and abroad in recent years is reviewed.Future research directions of g-C_(3)N_(4) activating persulfate system for degradation of organic pollutants are prospected.It is proposed that:The visible light capture ability and stability of g-C_(3)N_(4) need to be further improved;The toxicity of degradation products and the impact of metal ion leaching need to be focused on;The connection and difference between free radicals and non free radicals in the degradation process of organic pollutants need to be discussed in depth.
作者
袁瀚钦
董雯
吴兴良
王振宇
黄仕元
YUAN Hanqin;DONG Wen;WU Xingliang;WANG Zhenyu;HUANG Shiyuan(School of Civil Engineering,University of South China,Hengyang 421001,China;Xiamen Key Laboratory of Municipal and Industrial Solid Waste Resource Recovery and Pollution Control,School of Civil Engineering,Huaqiao University,Xiamen 361024,China)
出处
《化工环保》
CAS
CSCD
北大核心
2022年第6期645-653,共9页
Environmental Protection of Chemical Industry
基金
国家自然科学基金资助项目(51978638)。
