纳米复合光催化剂Ag@TiO_2日光辐照下催化性能  

Photocatalytic Performance of Nano-complexed Photocatalyst Ag@TiO_2 under Solar Irradiation

作　　者：林立[1] 周继承[1] 熊文高[2] 谢放华[1] 廖立明[1] 

机构地区：[1]湘潭大学化工学院,湖南湘潭411105 [2]湖南城市学院化学与环境工程系,湖南益阳413000

出　　处：《化学与生物工程》2008年第1期55-57,共3页Chemistry & Bioengineering

摘　　要：对自制Ag@TiO2光催化剂日光下光催化降解甲基橙模拟污染物的可行性进行了研究,探讨了反应时间、pH值、H2O2用量、催化剂浓度和催化剂重复使用对甲基橙光催化降解效果的影响。结果表明,在H2O2协同作用下,Ag@TiO2光催化剂可以快速降解溶液中的甲基橙,晴好天气下20 min溶液可褪至无色。A feasible research on photocatalytic degradation of methyl orange model pollutant under solar irradiation by self-made nano-complexed photocatalyst Ag@TiO2 was carried out. The effects of irradiation time, pH value, H2O2 amount, photocatalyst concentration and photocatalyst-reused on photocatalytic degradation of methyl orange were investigated. The results showed that nano-complexed photocatalyst Ag@ TiO2 enabled methyl orange in solution to photocatalytic degrade assisted by hydrogen peroxide. The solution could become colourless under above conditions with solar irradiation for 20 min. The photocatalyst could be reused well.

关 键 词：日光 Ag@TiO2光催化剂 性能 H2O2 

分 类 号：TQ426.8[化学工程] TQ134.11