| Preparation, characterization and photocatalytic behavior of WO3-TiO2/Nb2O5 catalysts |
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| 引用本文： | 童海霞 陈启元 胡慧萍 尹周澜 李洁 周建良. Preparation, characterization and photocatalytic behavior of WO3-TiO2/Nb2O5 catalysts[J]. 中南工业大学学报(英文版), 2007, 14(6): 788-792. DOI: 10.1007/s11771-007-0150-9 |
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| 作者姓名： | 童海霞 陈启元 胡慧萍 尹周澜 李洁 周建良 |
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| 作者单位： | School of Chemistry and Chemical Engineering Central South University，School of Chemistry and Chemical Engineering Central South University，School of Chemistry and Chemical Engineering Central South University，School of Chemistry and Chemical Engineering Central South University，School of Chemistry and Chemical Engineering Central South University，School of Chemistry and Chemical Engineering Central South University，Changsha 410083 China，Changsha 410083 China，Changsha 410083 China，Changsha 410083 China，Changsha 410083 China，Changsha 410083 China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | TiO2/Nb2O5 photocatalyst loaded with WO3 (WO3-TiO2/Nb2O5) was prepared by a modified hydrolysis process, and characterized by X-ray diffractometry, transmission electron microscopy, Raman spectra and UV-Vis diffuse refraction spectroscopy. The photocatalytic activity of WO3-TiO2/Nb2O5 was investigated by employing splitting of water for O2 evolution. The results indicate that WO3 loading can pronouncedly improve the photocatalytic activity of TiO2/Nb2O5 by using Fe3 as an electron acceptor under UV irradiation. The optimum molar fraction of the loaded WO3 is 2%, and the largest speed of O2 evolution for 2% WO3-TiO2/Nb2O5 catalyst is 151.8 μmol/(L·h).
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| 关 键 词： | 光催化剂 负载 氧进化 TiO2 Nb2O5 WO3 |
| 收稿时间： | 2007-03-29 |
| 修稿时间： | 2007-03-29 |
Preparation, characterization and photocatalytic behavior of WO3-TiO2/Nb2O5 catalysts |
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| Tong Hai-xia , Chen Qi-yuan , Hu Hui-ping , Yin Zhou-lan , Li Jie and Zhou Jian-liang. Preparation, characterization and photocatalytic behavior of WO3-TiO2/Nb2O5 catalysts[J]. Journal of Central South University of Technology, 2007, 14(6): 788-792. DOI: 10.1007/s11771-007-0150-9 |
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| Authors: | Tong Hai-xia Chen Qi-yuan Hu Hui-ping Yin Zhou-lan Li Jie Zhou Jian-liang |
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| Affiliation: | School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China |
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| Abstract: | TiO2/Nb2O5 photocatalyst loaded with WO3 (WO3-TiO2/Nb2O5) was prepared by a modified hydrolysis process, and characterized by X-ray diffractometry, transmission electron microscopy, Raman spectra and UV-Vis diffuse refraction spectroscopy. The photocatalytic activity of WO3-TiO2/Nb2O5 was investigated by employing splitting of water for O2 evolution. The results indicate that WO3 loading can pronouncedly improve the photocatalytic activity of TiO2/Nb2O5 by using Fe3+ as an electron acceptor under UV irradiation. The optimum molar fraction of the loaded WO3 is 2%, and the largest speed of O2 evolution for 2% WO3-TiO2/Nb2O5 catalyst is 151.8 μmol/(L·h). Foundation item: Project(2002AA327140) supported by National High-Tech Research and Development Program of China |
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| Keywords: | photocatalysis load oxygen evolution rutile TiO2 Nb2O5 WO3 |
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