纳米TiO_2/ZrO_2/Ce_2O_3复合薄膜的制备与光催化性能研究  

Preparation and Photocatalytic Properties of TiO_2/ZrO_2/Ce_2O_3 Composite Thin Film

作　　者：潘杰[1] 刘素文[1] 王彦敏[1] 崔晓鹏[1] 郭婷[1] 

机构地区：[1]山东轻工业学院材料科学工程系,山东济南250100

出　　处：《玻璃与搪瓷》2005年第5期10-13,52,共5页Glass & Enamel

基　　金：山东省科技计划资助项目(03A09)

摘　　要：采用溶胶-凝胶法分别制备了TiO2/ZrO2、TiO2/ZrO2/Ce2O3纳米复合薄膜。利用紫外-可见分光光度计、扫描电镜(SEM)等手段,对薄膜的光谱特性、晶粒尺寸、表面形貌进行了表征,并用分光光度法研究了复合薄膜对甲基橙溶液的降解,以及稀土铈离子对薄膜的光催化效率和抗失活稳定性的影响。结果表明,Ce3+可使TiO2/ZrO2薄膜中的晶粒尺寸减小,且晶粒在薄膜表面分布均匀致密,薄膜的光催化活性和抗失活稳定性均有较大提高。TiO2/ZrO2、TiO2/ZrO2/Ce2O3 composite thin films deposited on glass substrate were prepared by sol- gel method and characterized by ultraviolet- visible spectroscopy, scanning electron microscopy（SEM）. The photocatalytic efficiency and the anti- inactivation stability of TiO2/ZrO2 and TiO2/ZrO2/Ce2O3 films were tested by degradating methyl orange solution , which was carried out at different time under ultraviolet light and sunlight respectively. The results showed that the grain size in TiO2/ZrO2 thin film doped with Ce^3＋ was smaller and the homogeneity of grain size distribution was higher than that of TiO2/ZrO2 thin film. And the TiO2/ZrO2/Ce2O3 film had high grain density on surface. The photocatalytic property and anti -inactivation stability of TiO2/ZrO2/Ce2O thin film were all better than that of TiO2/ZrO2 thin film.

关 键 词：TIO2复合薄膜 溶胶-凝胶法 稀土离子 光催化 抗失活稳定性 

分 类 号：TQ171.724[化学工程—玻璃工业]