Photodegradation of dye pollutants on TiO_2 pillared bentonites under UV light irradiation  

作　　者：李静谊 朱怀勇 丁哲 陈春城 赵进才 

出　　处：《Science China Chemistry》2002年第4期445-448,共4页中国科学（化学英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (Grant Nos. 20133010,4001161947 and 20077027) ; Chinese Academy of Sciences.

摘　　要：TiO2 pillared bentonite samples dried under different conditions are used to degrade 2,4-dichlorophenol and orange II under UV light irradiation. The supercritical dried sample exhibits a high activity for the photodegradation of 2,4-dichlorophenol and orange II due to its structural features. TOC and COD are measured during the degradation of 2,4-dichlorophenol under UV light irradiation using P25 and TiO2 pillared bentonite samples dried under different conditions. The clay-based catalysts can be readily separated by filtration or sedimentation.TiO2 pillared bentonite samples dried under different conditions are used to degrade 2,4-dichlorophenol and orange II under UV light irradiation. The supercritical dried sample exhibits a high activity for the photodegradation of 2,4-dichlorophenol and orange II due to its structural features. TOC and COD are measured during the degradation of 2,4-dichlorophenol under UV light irradiation using P25 and TiO2 pillared bentonite samples dried under different conditions. The clay-based catalysts can be readily separated by filtration or sedimentation.

关 键 词：TIO2 PILLARED clays 2 4-dichlorophenol ORANGE II UV light irradiation. 

分 类 号：X786[环境科学与工程—环境工程]