| 多价硫掺杂二氧化钛的制备及可见光催化性能 |
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| 引用本文： | 苏文悦,蒋冬升,王绪绪,付贤智.多价硫掺杂二氧化钛的制备及可见光催化性能[J].福州大学学报(自然科学版),2008,36(6):893-896. |
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| 作者姓名： | 苏文悦 蒋冬升 王绪绪 付贤智 |
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| 作者单位： | 福州大学光催化研究所,福建,福州,350002 |
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| 基金项目： | 国家自然科学基金，卫生部科学研究基金-福建省卫生教育联合攻关计划 |
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| 摘 要： | 采用低温水热法制备了多价硫(S4+/S0)掺杂的二氧化钛催化剂(S-TiO2),运用低温氮吸附、X射线粉末衍射、紫外可见漫反射光谱和X射线光电子能谱等技术对催化剂进行了表征,并以可见光催化降解丙酮作为模型反应考察其可见光催化活性.结果表明,与TiO2相比,S-TiO2催化剂的BET比表面积大、孔径分布集中、光谱吸收边红移、锐钛矿向金红石的相转化被抑制,具有较高的可见光催化活性.
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| 关 键 词： | TiO2 硫掺杂 多价硫 可见光催化 |
The preparation and visible -light photocatalysis of multivalency sulfur doped TiO2 |
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| SU Wen-yue,JIANG Dong-sheng,WANG Xu-xu,FU Xian-zhi.The preparation and visible -light photocatalysis of multivalency sulfur doped TiO2[J].Journal of Fuzhou University(Natural Science Edition),2008,36(6):893-896. |
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| Authors: | SU Wen-yue JIANG Dong-sheng WANG Xu-xu FU Xian-zhi |
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| Institution: | (Research Institute of Photocatalysis,Fuzhou University,Fuzhou,Fujian 350002,China) |
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| Abstract: | Multivalency sulfur(S4 /S0) doped TiO2 were prepared via a low temperature hydrothermal method.The as-prepared S-TiO2 samples were characterized by N2 sorption analysis applying BET method,X-ray diffraction(XRD),UV-vis diffuse reflectance spectroscopy(DRS),and X-ray photoelectron spectroscopy(XPS).Visible-light photocatalytic decomposition of gaseous acetone over the S-TiO2 catalysts was investigated.The results showed that compared to undoped TiO2,the S-TiO2 exhibited higher resistance to crystal phase transformation from anatase to rutile,bigger BET specific area,centralized pore volume distribution,the red-shifted band edge of adsorption spectra,and photocatalytic activity under visible light irradiation. |
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| Keywords: | TiO2 S-doped multivalency sulfur visible-light photocatalysis |
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