WO_3/CeO_2对溴酚蓝的光催化降解性能  

Photocatalytic Degradation of Bromphenol Blue by WO_3/CeO_2 as Heterogeneous Photocatalyst

作　　者：崔玉民[1] 孙文中[1] 

机构地区：[1]阜阳师范学院化学系,安徽阜阳236032

出　　处：《河南科技大学学报（自然科学版）》2007年第3期94-97,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：安徽省自然科学基金项目(050450301);安徽省教育厅自然科学基金项目(2006KJ123B)

摘　　要：用复相光催化剂WO3/CeO2对含溴酚蓝的水溶液处理进行了研究。探讨了光催化剂作用机理,讨论了光催化剂的配比、溴酚蓝的起始浓度、光催化剂的用量、试液的pH值、双氧水的用量、光照时间与溴酚蓝溶液脱色率的关系。实验结果表明:催化剂配比WO3∶CeO2=3∶1,试液溴酚蓝起始浓度为10mg/L,催化剂用量为0.400g,pH=6.3,双氧水的用量为0.20mL,光照6h,溴酚蓝溶液的脱色率可以达到95.5%。The treatment of waste water containing bromphenol blue over WO3/CeO2 is studied.Reaction mechanism of photocatalysis is probed.The composition of heterogeneous photocatalyst,the starting concentration of bromphenol blue,amount of photocatalyst,pH values,amount of H2O2,illumination time and the decolorizing rate of bromphenol blue are discussed.The results show that the decolorizing rate of bromphenol blue can reach 95.5%,when the composition of heterogeneous photocatalyst is 3∶1,the starting concentration of bromphenol blue is 10 mg/L,amount of catalyst is 0.400 g,pH is 6.3,amount of H2O2 is 0.2 mL,and illumination time is 6 h.

关 键 词：复相光催化剂 溴酚蓝 三氧化钨 二氧化铈 

分 类 号：O644.1[理学—物理化学]