| Photocatalytic activity of porous TiO2 films prepared by anodic oxidation |
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| 作者姓名： | WANG Wei TAO Jie WANG Tao WANG Ling |
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| 作者单位： | College of Material Science ＆ Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| 基金项目： | 江苏省自然科学基金;航空科研项目 |
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| 摘 要： | Anatase titanium dioxide is an active photocatalyst, however, it is difficult to be immobilized on the substrate. The crystalline TiO2 porous film was prepared directly on the surface of pure titanium by anodic oxidation. The film was then used for photocatalysis via the methyl orange degradation method. The effects of anodization voltage, pH value, TiO2 film area and degradation time on the photocatalyst were investigated respectively by UV-visible spectrum. It was indicated that the TiO2 film prepared by anodic oxidation at 140 V had the best photocatalysis capability and the degradation of methyl orange was accelerated with acid addition.
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| 关 键 词： | 多孔氧化钛薄膜 阳极氧化法 制备 光催化活性 染料 |
| 收稿时间： | 2006-04-03 |
Photocatalytic activity of porous TiO2 films prepared by anodic oxidation |
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| WANG Wei TAO Jie WANG Tao WANG Ling.Photocatalytic activity of porous TiO2 films prepared by anodic oxidation[J].Rare Metals,2007,26(2):136-141. |
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| Authors: | WANG Wei TAO Jie WANG Tao WANG Ling |
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| Affiliation: | 1. Institute for Organic Photovoltaic Materials and Devices, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, PR China;2. Department of Energy and Environmental System Engineering, School of Light Industry, Zhejiang University of Science and Technology, Hangzhou 310023, PR China;3. Zhejiang Wynca Chemical Group Co., Ltd., Hangzhou 311600, PR China;4. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, PR China;1. The Key Laboratory of Weak Light Nonlinear Photonics, MOE, Nankai University, Tianjin 300457, China;2. Photonics Center, College of Physics, Nankai University, Tianjin 300071, China |
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| Abstract: | Anatase titanium dioxide is an active photocatalyst, however, it is difficult to be immobilized on the substrate. The crystalline TiO2 porous film was prepared directly on the surface of pure titanium by anodic oxidation. The film was then used for photocatalysis via the methyl orange degradation method. The effects of anodization voltage, pH value, TiO2 film area and degradation time on the photocatalyst were investigated respectively by UV-visible spectrum. It was indicated that the TiO2 film prepared by anodic oxidation at 140 V had the best photocatalysis capability and the degradation of methyl orange was accelerated with acid addition. |
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| Keywords: | titanium porous films anodic oxidation photocatalysis methyl orange |
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