人工晶体学报2013，Vol.42Issue(4)：671-676,6.
Ce掺杂TiO2纳米复合薄膜的制备及光催化活性
Preparation and Photocatalytic Activity of Ce-doped TiO2 Nanocomposite Films
摘要
Abstract
Ce-doped TiO2 nanocomposite films with the template of CTAB were prepared by the dip-coating method based on the sol-gel process.The samples were characterized by XRD, N2 adsorption-desorption, UV-Vis, SEM, XPS.The results show that the dopant Ce existed on surface of TiO2 as Ce4+ and Ce3 +.And the CTAB protected the TiO2 particles from aggregating and restrained the transform of anatase structure to rutile structure.UV-Vis absorbance spectra showed that under the template of CTAB the absorption band edge of Ce-doped TiO2 composite nano-films exhibited a red shift compared with that of pure TiO2 nano-films.And it exhibited a higher photocatalytic activity compared with the Ce-doped TiO2 without CTAB.Under an ultraviolet lamp irradiation, CTAB(1.0% )/Ce(1.0% )-TiO2 composite nano-film had the highest photocatalytic activity calcined at 500 ℃ and the degradation rate of the film is 95.3% after 120 min.关键词
溶胶-凝胶法/TiO2/纳米复合薄膜/甲基橙/光催化Key words
sol-gel method/ TiO2/ nanocomposite film/ methyl orange/ photocatalysis分类
数理科学引用本文复制引用
康俊龙,姚兰芳,杨松林,王亚琴,梁兴,黄艳..Ce掺杂TiO2纳米复合薄膜的制备及光催化活性[J].人工晶体学报,2013,42(4):671-676,6.基金项目
上海市特殊人工徽结构材料与技术重点实验室(ammt20011A-4)资助项目 （ammt20011A-4）
上海市2012年度"大学生创新创业训练计划"(201210252110) （201210252110）
