| Photocatalytic Properties of TiO2/Si-NPA Nano Composite Systems |
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| 作者姓名： | 孙猛 郝维昌 王春忠 李新建 王天民 |
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| 作者单位： | [1]Center of Material Physics and Chemistry, School of Science, Beijing University of Aeronautics and Astronautics, Beijing 100083 [2]Department of Technology and Physics, Zhengzhou University of Light Industry, Zhengzhou 450002 [3]Key Laboratory of Material Physics of MOE, Zhengzhou University, Zhengzhou 450052 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 50302001, and the Key Lab Project of Lanzhou Institute of Physics. |
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| 摘 要： | A new composite system is fabricated by depositing the TiO2 film on a silicon nanoporous pillar array （Si-NPA） and annealing at 500℃ using the spin coating method. Such a composite system exhibits a uniform morphology with the micron-dimension pillar array. Photocatalytic properties are investigated based on the degradation of methyl orange dye solution, and the results show that the photocatalytic efficiency of such a nano-composite system is 1.7 times that of the TiO2/glass system. The enhancement of photocatalytic efficiency is attributed to the large surface area of the TiO2/Si-NPA system.
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| 关 键 词： | 复合物 TiO2 Si 薄膜 复合材料 物理学 |
| 修稿时间： | 2006-07-28 |
Photocatalytic Properties of TiO2/Si-NPA Nano Composite Systems |
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| SUN Meng,HAO Wei-Chang,WANG Chun-Zhong,LI Xin-Jian,WANG Tian-Min.Photocatalytic Properties of TiO2/Si-NPA Nano Composite Systems[J].Chinese Physics Letters,2007,24(1):256-258. |
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| Authors: | SUN Meng HAO Wei-Chang WANG Chun-Zhong LI Xin-Jian WANG Tian-Min |
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| Affiliation: | Center of Material Physics and Chemistry, School of Science, Beijing University of Aeronautics and Astronautics, Beijing 100083
Department of Technology and Physics, Zhengzhou University of Light Industry, Zhengzhou 450002
Key Laboratory of Material Physics of MOE, Zhengzhou University, Zhengzhou 450052 |
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| Abstract: | A new composite system is fabricated by depositing the TiO2 film on a silicon nanoporous pillar array (Si-NPA) and annealing at 500°C using the spin coating method. Such a composite system exhibits a uniform morphology with the micron-dimension pillar array. Photocatalytic properties are investigated based on the degradation of methyl orange dye solution, and the results show that the photocatalytic efficiency of such a nano-composite system is 1.7 times that of the TiO2/glass system. The enhancement of hotocatalytic efficiency is attributed to the large surface area of the TiO2/Si-NPA system. |
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| Keywords: | 81 20 Fw 81 05 Rm 72 20 Jv |
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