| Preparation and photocatalytic activity of nano-TiO2 codoped with fluorine and ferric |
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| 作者姓名： | 李发堂 刘瑞红 赵地顺 孙智敏 曲志明 |
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| 作者单位： | [1]College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China [2]College of Chemical and Pharmaceutical Engineering,Hebei University of Science and Technology, Shijiazhuang 050018, China [3]School of Civil Engineering, Hebei Engineering University, Handan 056038, China |
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| 基金项目： | Project（203364） supported by the Natural Science Foundation of Hebei Province, China; project（XL2006038） supported by the Natural Science Foundation of Hebei University of Science and Technology, China |
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| 摘 要： | Nano-F /Fe^3＋/TiO2 particles were prepared by hydrolysis of tetrabutyl titanate in a mixed CF3COOH-Fe（NO3）3-H2O solution. The photocatalytic decomposition of methylene blue in aqueous solution was used as a probe to evaluate their photocatalytic activities. The powders were characterized by X-ray diffraction （XRD）, energy dispersion X-ray spectrum （EDS） and Brunauer-Emmett-Teller （BET） surface area analysis. The results show that F- and Fe^3＋ are doped into TiO2. The F^- and Fe^3＋ doping can help to enhance the nano-TiO2 photocatalytic activity greatly. The appropriate codoping conditions for F-Fe are n（F）/n（TiO2）=2%, n（Fe）/n（TiO2）=0.05%, and the degradation rate of methylene blue at l h is improved from 73.2% to 87.5%. The codoped nano-F /Fe^3＋/TiO2 particles have higher BET specific surface area, smaller crystallite size and higher photocatalytic activity than those of undoped TiO2 particles.
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| 关 键 词： | 纳米二氧化钛 制备方法 光催化活性 氟掺杂 铁离子掺杂 |
| 收稿时间： | 2007-07-15 |
| 修稿时间： | 2007-09-10 |
Preparation and photocatalytic activity of nano-TiO2 codoped with fluorine and ferric |
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| LI Fa-tang, LIU Rui-hong, ZHAO Di-shun, SUN Zhi-min, QU Zhi-ming.Preparation and photocatalytic activity of nano-TiO2 codoped with fluorine and ferric[J].Transactions of Nonferrous Metals Society of China,2007,17(A02):713-715. |
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| Authors: | LI Fa-tang LIU Rui-hong ZHAO Di-shun SUN Zhi-min QU Zhi-ming |
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