| 可见光响应氧化铁复合TiO2光催化剂的制备及其性能研究 |
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| 引用本文： | 赵斯琴,长山,王海,吕卫华. 可见光响应氧化铁复合TiO2光催化剂的制备及其性能研究[J]. 化学试剂, 2012, 34(2): 147-150 |
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| 作者姓名： | 赵斯琴 长山 王海 吕卫华 |
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| 作者单位： | 内蒙古师范大学化学与环境科学学院内蒙古自治区功能材料物理与化学重点实验室,内蒙古呼和浩特,010022 |
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| 基金项目： | 国家自然科学基金，内蒙古自然科学基金，内蒙古师范大学青年基金 |
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| 摘 要： | 以尿素铁(Ⅲ)配合物和钛酸四丁酯为前驱物,采用注入法制备了不同Fe2O3复合比的TiO2纳米粉体,通过DTATG 、XRD、XPS和UV-Vis的测试,表征其物相结构、样品表面元素存在形式和光谱学性质；并以甲基橙光降解反应为探针反应,分别以紫外光和可见光为光源测试其光催化活性.结果表明,复合Fe2O3后的TiO2纳米粉体为锐钛矿型,样品表面铁元素主要以Fe(Ⅲ)形式存在,并且其UV-Vis光谱吸收曲线有明显的红移现象；Fe2O3的复合明显提高了TiO2光催化剂的紫外和可见光催化活性；Fe2O3的最佳复合比为1 mol％.
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| 关 键 词： | Fe2O3/TiO2 半导体复合 光催化活性 |
Preparation and properties of Fe2O3 doping TiO2 photocatalyst with visible light responding |
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| ZHAO Si-qin , CHANG Shan , WANG Hai , LV Wei-hua. Preparation and properties of Fe2O3 doping TiO2 photocatalyst with visible light responding[J]. Chemical Reagents, 2012, 34(2): 147-150 |
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| Authors: | ZHAO Si-qin CHANG Shan WANG Hai LV Wei-hua |
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| Affiliation: | (Key Laboratory of Physics and Chemistry of Function Materials,College of Chemistry and Environment Science,Inner Mongolia Normal University,Huhehaote 010022,China) |
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| Abstract: | TiO2 nanopowder doped with different content of Fe2O3 were synthesized by injection method with ferric(Ⅲ) urea and titanium tetrabutoxide as precursors,and they are characterized using thermal analyses(TG-DTA),X-ray powder diffraction(XRD),X-ray photoelectron spectroscopy(XPS),UV-Vis diffuse reflectance spectroscopy techniques.It has been found that the UV-absorption range of TiO2 can be extended to the visible region by Fe2O3 doping.The iron elements on the surface of samle exist in ferric(Ⅲ),and the both UV-light and Vis-light photocatalytic activities of TiO2 nanopowder can be increased by Fe2O3 doping.The optimal doping content of Fe2O3 was found to be 1 mol%. |
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| Keywords: | Fe2O3/TiO2 semiconductor modification photocatalytic activity |
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