摘要
由于在环境中的广泛分布和难降解特性,多溴联苯醚和氰尿酸这两种环境污染物近年来得到了广泛的关注。光化学方法能够成功降解这两种新型污染物。本文综述了使用光化学方法降解多溴联苯醚和氰尿酸的最新研究进展。介绍了在有机溶剂中和颗粒物表面多溴联苯醚的光化学分解,重点对二氧化钛光催化还原降解多溴联苯醚的反应途径及其机理,以及二氧化钛光催化分解氰尿酸的研究进行了总结,最后对光化学降解多溴联苯醚和氰尿酸的发展方向进行了展望。
The two kinds of organic pollutants, polybrominated diphenyl ether congeners and cyanuric acid, have attracted remarkable attention due to their wide distribution and resistance to oxidation in the environment. Photochemical method has proved to be capable of decomposing them. Recent advances in the photochemical degradation of these two kinds of organic pollutants are discussed in this review. The photochemical transformation of polybrominated diphenyl ether congeners in organic solvents and adsorbed on the surface of solid matrixes are introduced. The reaction pathway and mechanism of reductive debromination of decabromodiphenyl ether catalyzed by TiO2 photoeatalyst are highlighted. The researches on the eyanuric acid degradation by TiO2 photoeatalytie method are summarized. Future developments of the application of photochemistry in the degradation of polybrominated diphenyl ether congeners and cyanufic acid are also discussed.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2009年第2期400-405,共6页
Progress in Chemistry
基金
国家重点基础研究发展计划(973)项目(No.2007CB613306)
国家自然科学基金重点项目(No.20537010)
国家自然科学基金项目(No.20877076
20777076)资助
关键词
多溴联苯醚
氰尿酸
光催化
二氧化钛
polybrominated diphenyl ether
cyanuric acid
photocatalysis
titania
