Preparation and Photocatalytic Activity of Fluorine and Cerium Codoped Nano-TiO2 Powders
Nano-F<,->/Ce<,3+>/TiO<,2> particles were prepared by hydrolysis of tetrabutyl titanate in a mixed CF<,3> COOH-Ce (NO<,3>)<,3>-H<,2>O solution. The photocatalytic decomposition of methylene blue in aqueous solution was used to evaluate their photocatalytic activities. The powders were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersion X-ray spectrum (EDS), and Brunauer-Emmett- Teller (BET) surface area analysis. The results showed that F<-> and Ce<3+> were doped into TiO <2>. The appropriate content of fluorine and cerium were 2.0％ and 1.0％ (atom fraction) respectively. The codoped nano-F<->/Ce<3+>/TiO<,2> particles had higher BET specific surface area, smaller crystallite size and higher photocatalytic activity than those of undoped TiO<,2> particles.
fluorine-cerium codoped nano-TiO<,2> photocatalytic activity rare earths
Li Fatang(李发堂) Zhao Dishun(赵地顺) Chen Weina(陈伟娜) Shang Shichen(商世臣) Yin Rong(殷蓉)
College of Sciences, Hebei University of Science and Technology, Shijiazhuang 050018, China College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shij
国际会议
第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)
包头
英文
146-149
2007-08-07（万方平台首次上网日期，不代表论文的发表时间）