| 可见光响应的铁掺杂TiO_2中空微球的制备及其光催化性能 |
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| 引用本文： | 常 琳,刘晶冰,王金淑,张文熊.可见光响应的铁掺杂TiO_2中空微球的制备及其光催化性能[J].无机化学学报,2010,26(5):744-748. |
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| 作者姓名： | 常 琳 刘晶冰 王金淑 张文熊 |
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| 作者单位： | 北京工业大学材料学院,北京,100124 |
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| 摘 要： | 以聚苯乙烯微球作为模板,水溶性过氧化钛配合物作为前驱体一步合成了掺铁TiO2中空微球,并利用XRD,SEM,TEM,XPS,UV-Vis等测试手段对样品进行了表征。结果表明,一步法制备的掺铁TiO2中空微球以锐钛矿相存在且具有良好的中空结构,掺杂少量铁到体系中,改变了其电子结构,使其吸收波长拓展到可见光区。光催化降解亚甲基蓝溶液的结果表明,掺杂0.75%铁的TiO2中空微球表现出更好的光催化性能。对Fe3+影响光催化活性的机理进行了讨论。
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| 关 键 词： | 二氧化钛 掺铁 中空微球 可见光响应 |
Synthesis and Photocatalytic Activity of Visible-Light-Sensitive Fe Doped TiO2 Hollow Microspheres |
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| CHANG Lin,LIU Jing-Bing,WANG Jin-Shu and ZHANG Wen-Xiong.Synthesis and Photocatalytic Activity of Visible-Light-Sensitive Fe Doped TiO2 Hollow Microspheres[J].Chinese Journal of Inorganic Chemistry,2010,26(5):744-748. |
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| Authors: | CHANG Lin LIU Jing-Bing WANG Jin-Shu and ZHANG Wen-Xiong |
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| Institution: | College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124,College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124,College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124 and College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124 |
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| Abstract: | Fe-doped TiO2 microspheres with hollow interiors were prepared using polystyrene latex particles as the template and peroxo-titanium complex as the precursor. The resulting samples are characterized by XRD, SEM, TEM, XPS and UV-Vis. The results reveal that the Fe-doped TiO2 hollow microspheres show pure anatase phase and have a good hollow structure. When adding a concentration of Fe into the system, the electronic structures changed and obviously enhance the absorption in the visible light region. TiO2 hollow microspheres with 0.75% Fe dosage exhibited the superior photocatalytic activity for the decomposition of methylene blue under visible-light irradiation. The possible photocatalytic mechanism is proposed. |
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| Keywords: | titania hollow microsphere visible-light-sensitive photocatalyst Fe doping |
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