| Preparation and characterization of high photoactive TiO2 catalyst using the UV irradiation-induced sol-gel method |
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| 引用本文： | Jianhua Liu Rong Yang Songmei Li. Preparation and characterization of high photoactive TiO2 catalyst using the UV irradiation-induced sol-gel method[J]. 北京科技大学学报(英文版), 2006, 13(4): 350-354. DOI: 10.1016/S1005-8850(06)60072-8 |
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| 作者姓名： | Jianhua Liu Rong Yang Songmei Li |
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| 作者单位： | School of Materials Science and Engineering, Beijing University of Aeronautics ＆ Astronautics, Beijing 100083, China |
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| 摘 要： | High photoactive TiO2 catalyst was prepared using the sol-gel method through UV irradiation during the formation stage of nuclei. The surface morphology and microstructure of the prepared catalyst were characterized using scanning electron microscopy （SEM）, X-ray diffraction patterns （XRD）, and Fourier transform infrared spectroscopy （FF-IR）. The photoactivity was evaluated by the degradation of methylene blue. The results show that the photocatalysis of the prepared catalyst is higher than that of conventional heat-treated particles. The higher photoactivity is a combined result of favorable microstructure, appropriate hydroxyl groups, and active sites of Ti^3＋ ions on the surface of TiO2. It is concluded that the ultraviolet irradiation-induced sol-gel method is an effective method to enhance the photocatalysis of TiO2.
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| 关 键 词： | 二氧化钛 光催化 溶胶-凝胶 紫外线照射 |
| 收稿时间： | 2005-10-19 |
Preparation and characterization of high photoactive TiO2 catalyst using the UV irradiation-induced sol-gel method |
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| Jianhua Liu,Rong Yang,Songmei Li. Preparation and characterization of high photoactive TiO2 catalyst using the UV irradiation-induced sol-gel method[J]. Journal of University of Science and Technology Beijing, 2006, 13(4): 350-354. DOI: 10.1016/S1005-8850(06)60072-8 |
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| Authors: | Jianhua Liu Rong Yang Songmei Li |
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| Affiliation: | School of Materials Science and Engineering, Beijing University of Aeronautics & Astronautics, Beijing 100083, China |
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| Abstract: | High photoactive TiO2 catalyst was prepared using the sol-gel method through UV irradiation during the formation stage of nuclei. The surface morphology and microstructure of the prepared catalyst were characterized using scanning electron microscopy(SEM), X-ray diffraction patterns (XRD), and Fourier transform infrared spectroscopy (FT-IR). The photoactivity was evaluated by the degradation of methylene blue. The results show that the photocatalysis of the prepared catalyst is higher than that of conventional heat-treated particles. The higher photoactivity is a combined result of favorable microstructure, appropriate hydroxyl groups, and active sites of Ti3 ions on the surface of TiO2. It is concluded that the ultraviolet irradiation-induced sol-gel method is an effective method to enhance the photocatalysis of TiO2. |
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| Keywords: | titanium oxide photocatalysis sol-gel ultraviolet irradiation |
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