Ag^+修饰改性TiO_2薄膜的制备、表征及日光催化性能研究  

Prepraration and characterization of TiO_2 film modified by Ag^+ and its sun light photocatalytic activity

作　　者：马琦[1] 胡富苗[1] 张保柱[1] 张志强[1] 张智敏[1] 

机构地区：[1]山西大学化学化工学院,山西太原030006

出　　处：《化工科技》2005年第5期23-25,共3页Science & Technology in Chemical Industry

基　　金：山西省自然科学基金资助项目(20041016)

摘　　要：采用溶胶-凝胶法,制备了Ag+/TiO2薄膜。利用XRD、SEM等测试手段进行了样品的表征分析,以降解罗丹明B为反应模型,研究了薄膜的日光催化活性和薄膜的重复使用效果。结果表明,Ag掺杂以后可以明显地提高TiO2薄膜的催化活性,薄膜的使用次数可达到5次以上,且仍有明显的降解效果。Ag^＋/TiO2 film was prepared by sol-gel method, the surface morphology of samples was characterized by XRD and SEM. Light photocatalytic activity was measured by using photocatalytic degradation Rodanmine B as a model reaction. Using life of films was investigated. The results show that light photocatalytic activity of TiO2 film could be increased greatly after doping Ag^＋ . Degradation efficiency of film was still high after using more five times.

关 键 词：银 二氧化钛 日光催化 

分 类 号：TQ134.11[化学工程—无机化工]