F and Fe co-doped TiO2 with enhanced visible light photocatalytic activity

被引：32
|
作者：
Zhang, Yihe [1 ]
Lv, Fengzhu [1 ]
Wu, Tao [1 ]
Yu, Li [1 ]
Zhang, Rui [1 ]
Shen, Bo [1 ]
Meng, Xianghai [1 ]
Ye, Zhengfang [2 ]
Chu, Paul K. [3 ]
机构：
[1] China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Sch Mat Sci & Technol, Beijing 100083, Peoples R China
[2] Peking Univ, Dept Environm Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R China
[3] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2011年 / 59卷 / 02期
关键词：
TiO2; Co-doping; Visible light; Photocatlytic property; METAL-ION DOPANTS; CODOPED TIO2; TEMPERATURE; DEPOSITION; CARBON; WATER;
D O I：
10.1007/s10971-011-2449-0
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Four different sols, pure TiO2, F doped TiO2, Fe doped TiO2, and F-Fe co-doped TiO2 sols, were prepared by peroxidation at low temperature. The crystal structure, morphology, light adsorption, and photocatalytic properties of the pure and doped TiO2 were examined by X-ray diffraction, transmission electron microscopy, and ultraviolet-visible spectrophotometry. The relationship between the average size, crystal type, range of visible light absorption, and photocatalytic activity and content and type of doped ions were investigated. The results showed that the average size of the F-Fe co-doped TiO2 composed of both the anatase and rutile phases was the same as that of pure TiO2. Furthermore, the visible light photocatalytic activity of the F-Fe co-doped TiO2 was significantly improved over pure TiO2, F-doped TiO2, and Fe-doped TiO2 due to the large red shift in the light adsorption edge.
引用
收藏
页码：387 / 391
页数：5
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