| 光源对掺铁TiO2纳米粉体催化活性的影响 |
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| 引用本文： | 徐玲,李燕,徐立红,刘昌龄.光源对掺铁TiO2纳米粉体催化活性的影响[J].合肥工业大学学报(自然科学版),2005,28(8):885-888. |
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| 作者姓名： | 徐玲 李燕 徐立红 刘昌龄 |
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| 作者单位： | 安徽建筑工业学院,材料科学与工程系,安徽,合肥,230022;安徽教育学院,化学系,安徽,合肥,230061 |
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| 基金项目： | 安徽省教育厅自然科学基金资助项目(99JL0037) |
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| 摘 要： | 以共沸蒸馏法制备出结晶完整、分散性好、平均粒径为5nm左右以及掺Fe3+量为0.1%的TiO2纳米粉体,通过XRD和TEM分析方法对晶体的物相和粒径进行了表征;通过在不同光源下催化降解水杨酸溶液,对其光催化活性及影响因素进行了分析;实验结果表明掺Fe3+量为0.1%的TiO2纳米粉体在日光下的光催化活性较高.
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| 关 键 词： | 共沸蒸馏法 TiO2纳米粉体 掺杂 光催化活性 水杨酸 |
| 文章编号： | 1003-5060(2005)08-0885-04 |
| 修稿时间： | 2004年10月21 |
Effect of light on the photocatalytic activity of the Fe3+-doped TiO2 nanometer powder |
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| XU Ling,LI Yan,XU Li-hong,LIU Chang-Ling.Effect of light on the photocatalytic activity of the Fe3+-doped TiO2 nanometer powder[J].Journal of Hefei University of Technology(Natural Science),2005,28(8):885-888. |
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| Authors: | XU Ling LI Yan XU Li-hong LIU Chang-Ling |
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| Institution: | XU Ling~1,LI Yan~1,XU Li-hong~1,LIU Chang-ling~2 |
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| Abstract: | The TiO__2 nanometer powders doped with Fe~~(3+)of 0.1% were synthesized by the azeotropic distillation method. The obtained particles were well-crystallized,the degree of dispersion was satisfying,and the average size of particles was about 5 nm.The crystal phase composition and the particle size were characterized by XRD and TEM. The photocatalytic activity and the influencing factors were studied through degrading salicylic acid in the different lights. The experimental results show that the photocatalytic activity of the obtained Fe~~(3+)-doped TiO_2 nanometer powder is higher in the sunlight. |
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| Keywords: | azeotropic distillation TiO_2 nanometer powder dopant photocatalytic activity salicylic acid |
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