摘要
采用光化学沉积法在玻璃上制备了锐钛矿型TiO_2和金属铁、铬离子掺杂TiO_2薄膜，并采用XRD，SEM，XPS表征了所合成的薄膜．结果表明，掺杂铁离子的TiO_2薄膜表面呈现出颗粒状纹路，掺杂铬离子的TiO_2薄膜表面呈现网格状纹路．TiO_2薄膜的亲水性能随着金属离子的加入而增加．铁离子的加入对TiO_2薄膜催化降解甲基橙的能力有所促进，而铬离子的加入对TiO_2薄膜催化降解甲基橙的能力没有显著提高．
TiO2 thin film and Fe2O3/TiO2 and Cr2O3/TiO2 thin films were prepared by the photodepositing method on soda lime glass substrates. The results of SEM showed that the surface of Fe2O3/TiO2 thin film was occupied by grain-like oxides while the surface of Cr2O3/TiO2 thin film by net-like particles. The hydrophilicities of TiO2 thin films increased with the doping of Fe^3＋/Cr^3＋. The photoeatalytie activities of TiO2 films in photodegradation of methylene orange solution increased with the doping of Fe^3＋ but varied little with the doping of Cr ^3＋.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2005年第6期698-701,共4页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金(No.20306030)
关键词
光化学沉积
光催化
亲水性
掺杂
二氧化钛
photochemistry
deposition
photocatalysis
hydrophilicity
doping
titanium oxide
