水中微塑料光催化处理的进展  

Advances in photocatalytic treatment of microplastics in water

作　　者：钟宛真 单斌 谭伟强[1] 罗思义[1] ZHONG Wanzhen;SHAN Bin;TAN Weiqiang;LUO Siyi(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266000,Shandong,China)

机构地区：[1]青岛理工大学环境与市政工程学院,山东青岛266000

出　　处：《精细化工》2023年第6期1176-1186,共11页Fine Chemicals

基　　金：山东省自然科学基金面上项目(ZR2019MEE015)

摘　　要：近年来,微塑料(MPs)作为新型污染物引发的环境问题受到了广泛关注,水体环境作为微塑料的主要汇集地其治理工作已成为热点研究领域。微塑料具有化学性质稳定、易随环境介质迁移、吸附其他污染物易引发复合毒性等特性,传统的水处理技术不能高效、彻底地将其去除。光催化技术在实验室规模上可将MPs转化为水溶性碳氢化合物和CO_(2),在彻底降解MPs方面表现出巨大潜力。该文分析了光催化技术去除MPs的热点与前沿分布,综述了光催化降解MPs的机理、单组分催化剂和复合催化剂的研究进展及影响催化降解效果的MPs的自身特性和环境因素,为去除水环境中MPs的研究提供了可靠依据,并且针对复杂水环境中MPs光催化降解和催化剂的发展进行了展望。In recent years,environmental problems caused by pollution of microplastics(MPs)have received extensive attention.The treatment of aqueous environment,the main pool of microplastics,has become a research hotspot.Due to its chemical stability,easy migration along with environmental media,and enhanced toxicity caused by the adsorption of other pollutants,the MPs could not be removed efficiently and thoroughly via conventional water treatment technologies.Photocatalysis can convert MPs to water-soluble hydrocarbons and CO_(2) at a laboratory scale,showing great potential for the complete degradation of MPs.Herein,the advanced research on MPs removal by photocatalysis were summarized,followed by detailed review on the photocatalytic degradation mechanism,the research progress of single component catalysts and composite catalysts,and the characteristics of MPs and environmental factors affecting catalytic degradation.Finally,the development directions of photocatalytic degradation of MPs in complex aqueous environments as well as development of new catalysts were discussed.

关 键 词：水环境 微塑料 光催化氧化 降解机理 光催化剂 

分 类 号：X-1[环境科学与工程]