| 固体超强酸纳米光催化剂SO42--TiO2的制备及Ag改性 |
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| 引用本文： | 刘红,刘潘,辜孔良,李晶,孙旋.固体超强酸纳米光催化剂SO42--TiO2的制备及Ag改性[J].化工进展,2006,25(4):411-414,419. |
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| 作者姓名： | 刘红 刘潘 辜孔良 李晶 孙旋 |
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| 作者单位： | 武汉科技大学资源与环境学院,武汉,430081;武汉科技大学资源与环境学院,武汉,430081;武汉科技大学资源与环境学院,武汉,430081;武汉科技大学资源与环境学院,武汉,430081;武汉科技大学资源与环境学院,武汉,430081 |
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| 摘 要： | 以钛酸丁酯为原料,通过在TiO2溶胶中添加质量分数为49%的硫酸,用溶胶–凝胶法制备了固体超强酸纳米光催化剂SO42?-TiO2,并在此基础上用硝酸银进行了改性。用XRD、IR、UV-vis、BET等手段对所制得的试样进行了表征,同时以甲基橙及苯酚的水溶液为模拟污染物,评价了样品的光催化性能,发现SO42--TiO2的光催化活性最高可达单一TiO2的10倍,SO 42?/Ag-TiO2的液相光催化活性超过P-25。
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| 关 键 词： | SO42--TiO2 改性 固体超强酸 光催化活性 |
| 文章编号： | 1000-6613（2006）04-0411-04 |
| 收稿时间： | 2005-11-21 |
| 修稿时间： | 2005-11-212006-02-07 |
Preparation and modification by Ag of solid super-acid nano- SO42--TiO2 photo-catalyst |
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| LIU Hong,LIU Pan,GU Kongliang,LI Jing,SUN Xuan.Preparation and modification by Ag of solid super-acid nano- SO42--TiO2 photo-catalyst[J].Chemical Industry and Engineering Progress,2006,25(4):411-414,419. |
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| Authors: | LIU Hong LIU Pan GU Kongliang LI Jing SUN Xuan |
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| Affiliation: | School of Resources and Environment, Wuhan University of Science and Technology, Wuhan 430081 |
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| Abstract: | Solid super-acid nano-SO42-TiO2 powder photo-catalyst were prepared by the sol-gel method using Ti(OC4H9)4 as raw material and adding 49% sulfuric acid into the original liquid.Then the SO42? /Ag-TiO2 photo-catalyst was modified by AgNO3.The prepared samples were characterized with UV-vis,IR,XRD and BET measurements.The photo-catalytic reactivity of samples was evaluated by using methyl orange and phenol aqueous solution as simulated contaminants.The results showed that the photo-catalytic reactivity of SO42?-TiO2 was 10 times higher than that of unmodified TiO2 and the photo-catalytic reactivity of SO42? /Ag-TiO2 was even higher than that of P-25. |
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| Keywords: | SO42--TiO2 modification solid super-acid photo-catalytic activity |
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