玻璃基TiO2-Fe2O3-CeO2复合纳米薄膜的光催化性能研究  

Photo-catalytic Activity of Glass-based TiO2-Fe2O3-CeO2 Composite Nano-films

作　　者：李静[1] 姚明明[1] 张颖[1] 杨槐[2] 

机构地区：[1]济南大学化学化工学院,山东济南250022 [2]北京科技大学材料科学与工程学院,北京100083

出　　处：《中国粉体技术》2009年第4期31-35,共5页China Powder Science and Technology

基　　金：国家自然科学基金项目,编号:20674005

摘　　要：摘要：在溶胶-凝胶法制备的TiO2胶膜表面涂覆金属离子，通过焙烧制备TiO2-Fe2O3-CeO2复合纳米薄膜。以甲基橙为目标降解物，讨论过渡金属离子Fe3＋和稀土金属离子Ce2＋的掺杂对TiO2薄膜光催化活性的影响。采用SEM、XRD、EDS等表征手段对复合氧化物薄膜进行表征。结果表明：所制备的薄膜具有纳米结构；Fe3＋、Ce3＋单掺和Fe3＋/Ce3＋共掺均可提高TiO2薄膜的光催化性能，但相同条件下共掺离子的光催化活性更高。The metal ions were coated on TiO2 colloidal films prepared by sol-gel method,and a sintering process was adopted to make composite TiO2-Fe2O3-CeO2 nano-films. Taking methyl orange as degraded,it was aimed to discuss the effect of transition metal ion Fe3＋ and rare earth ion Ce3＋ on photo-catalytic activity of TiO2 thin films. SEM,XRD and EDS were used to characterize the composite oxide-films. The experiment re- sults showed that the film had nano-structure. The co-doped Fe3＋ and Ce4＋ composite TiO2 films were more effective than the pure TiO2, doped Fe3＋ or doped Ce4＋ films to photo-degradation methyl orange in solution.

关 键 词：溶胶-凝胶 复合纳米薄膜 光催化性能 

分 类 号：TG174.451[金属学及工艺—金属表面处理]