掺银TiO_2薄膜的制备及其光催化性能  

Preparation of Ag doping TiO_2 thin film and its photocatalytic properties

作　　者：崔斌[1] 梁倩[1] 顾利平 余向阳[1] 唐宗薰[1] 史启祯[1] 

机构地区：[1]西北大学化学系,陕西西安710069

出　　处：《西北大学学报（自然科学版）》2000年第5期397-399,共3页Journal of Northwest University（Natural Science Edition）

基　　金：陕西省教委专项科研基金资助项目!(98JK117)

摘　　要：采用 Sol- gel法在玻璃板表面制得均匀的 Ti O2 薄膜 ,并利用光催化还原法镀银得到掺银Ti O2 薄膜。用掺银的 Ti O2 薄膜和未掺银的 Ti O2 薄膜在高压汞灯和太阳光的照射下 ,对有机物苯酚水溶液进行催化光解研究。结果表明掺银 Ti O2 薄膜的光催化活性明显大于未掺银 Ti O2 薄膜 ,这是提高 Ti O2The evenly common TiO 2 thin films deposited on glass substrates were prepared by Sol gel processing.Then Ag doping TiO 2 thin films were successfully obtained by photocatalytic reduction processing on the TiO 2 thin films.Phenol as a organic compound in water was degraded in the presence of the glass coated with TiO 2 or Ag doping TiO 2 by illumination with a high pressure mercury lamp and sunlight.Photocatalytic degradtion indicated that photodegradation rate of the glass coated with Ag doping TiO 2 was superior to that of the glass coated with TiO 2,which will probably become a new method for improving the photocatalytic efficiency of TiO 2.

关 键 词：溶胶--凝胶法 掺银 二氧化钛薄膜 光催化 

分 类 号：O614.411[理学—无机化学] O643.3[理学—化学]