| 过渡元素离子表面改性锐钛型TiO2光催化活性规律探讨 |
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| 引用本文： | 毛磊,童仕唐,张海禄,崔正威.过渡元素离子表面改性锐钛型TiO2光催化活性规律探讨[J].武汉科技大学学报(自然科学版),2006,29(1):66-68. |
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| 作者姓名： | 毛磊 童仕唐 张海禄 崔正威 |
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| 作者单位： | 武汉科技大学化工与资源环境学院,湖北,武汉,430081 |
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| 摘 要： | 试验考察第一过渡周期元素离子掺杂改性对锐钛型TiO2（A-TiO2）光催化降解水中十二烷基苯磺酸钠（DBSNa）效果的影响。结果表明，与未改性样品比较，改性后TiO2光催化活性大部分得到提高，除Cu元素掺杂外，掺杂元素电子亲和势与离子半径的比值（Ea／r）与催化活性之间存在一致性；Cu-TiO2光催化活性的降低归结于以一价形式存在。
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| 关 键 词： | 光催化 改性二氧化钛 过渡金属 污水处理 |
| 文章编号： | 1672-3090(2006)01-0066-03 |
| 收稿时间： | 2004-12-27 |
| 修稿时间： | 2004年12月27 |
Photocatalytic Activity Law of Transition Metal-doped Anatase TiO2 |
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| MAO Lei,TONG Shi-tang,ZHANG Hai-lu,CUI Zheng-wei.Photocatalytic Activity Law of Transition Metal-doped Anatase TiO2[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),2006,29(1):66-68. |
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| Authors: | MAO Lei TONG Shi-tang ZHANG Hai-lu CUI Zheng-wei |
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| Institution: | College of Chemical Engineering, Resources and Environment, Wuhan University of Science and Technology, Wuhan 430081, China |
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| Abstract: | This paper studies the photocatalytic oxidation of DBSNa with transition metal-doped anatase TiO_2,and discusses the effect mechanism of doped transition metal and the relationship between the activity and properties of doped ions.The results indicate that, compared with the untreated sample, the modified TiO_2 exhibits higher photocatalytic activity, excepting the Cu modified sample. And there is a uniformity between the E_a/r (electron affinity/ionic radius) and photocatalytic activity; the descent in catalytic activity of Cu-TiO_2 is due to the existence of Cu+. |
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| Keywords: | photocatalysis modified TiO2 transition metal wastewater treatment |
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