退火气氛对掺银TiO_2薄膜结构和光催化性能的影响  

Influence of Annealing Atmosphere on the Structures and Photocatalytic Properties of Ag-Doped TiO_2 Thin Film

作　　者：林成鲁[1] 宋世庚[2] 武光明[2] 陶明德[2] 张校刚[3] 符小荣[1] 

机构地区：[1]中国科学院上海冶金研究所信息功能材料国家重点实验室,上海200050 [2]中国科学院新疆物理研究所,乌鲁木齐830011 [3]新疆大学化学系,乌鲁木齐830046

出　　处：《化学学报》1998年第6期521-526,共6页Acta Chimica Sinica

基　　金：中国科学院新疆物理研究所所长基金资助课题

摘　　要：本文采用sol-gel法制备了掺银的TiO_2/glass纳米光催化薄膜,并分别在空气和真空条件下对薄膜进行退火处理.结构和光催化性能的测试结果表明,退火气氛对薄膜的结构和薄膜对染料溶液的光催化降解效率都有影响.经真空退火处理的TiO_2及Ag-TiO_2薄膜较空气中退火处理的同样薄膜的光催化性能都低,但适量掺银的Ag-TiO_2薄膜的光催化活性较TiO_2有不同程度的增强.In this paper, Ag - doped TiO2 thin films with nano - crystal have been prepared by the sol - gel processing. Annealing method was chosen under air and vaccum atmosphere respectively. The results,indicate that the annealing atmosphere has influences on the structures and photocatalytic degradation of dye solution by thin films. The photocatalytic activities of Ag -TiO2 and TiO2 films annealed under air atmosphere were higher than that of annealed under vaccum atmosphere. Meanwhile, the photocatalytic activities of TiO2 thin film could be increased when a moderate Ag was doped.

关 键 词：退火气氛 二氧化钛薄膜 掺杂 性能 光催化剂 

分 类 号：O643.36[理学—物理化学] TQ426.81[理学—化学]