氯代酚类污染物光催化降解研究进展

Review on photocatalytic degradation of chlorophenols

氯代酚是重要的有机化工原料,广泛存在于工业废水、杀菌(防腐)剂和药物前驱体,直接(间接)排放到自然环境中会对自然环境乃至人类健康造成严重危害。氯代酚类污染物所造成的危害已经成为全球重点关注和防控问题。利用光催化技术降解氯代酚类污染物的研究日益广泛、深入,具有广阔的发展前景。从氯代酚类污染物的基本结构入手,通过化学结构、理化性质、毒性和来源,概括总结了氯代酚类污染物的基本情况,并综述了近年来利用光催化技术实现高效降解氯代酚类污染物的研究情况及光催化降解机制。最后,对研究光催化解决氯代酚污染问题的研究前景进行展望。

Chlorophenols are important organic chemical raw materials,which are widely present in industrial wastewater,including antiseptic(antiseptic)agents,and drug precursors.Direct(indirect)discharge into the natural environment will cause serious harm to the natural environment and even human health.The harm caused by chlorophenol pollutants has become a key concern and prevention and control issue worldwide.The use of photocatalytic technology to degrade chlorinated phenolic pollutants is increasingly extensive and in-depth,and has broad prospects for development.The basic situation of chlorophenols from the basic structure,physicochemical properties,toxicity and sources of chlorophenols are summarizes.The research progress of high-efficiency degradation of chlorophenols pollutants by photocatalytic technology and the photocatalytic degradation mechanism of chlorinated phenolic pollutants in recent years are reviewed,and the prospects of the degradation of chlorophenols pollutants by photocatalytic technology are predicted.