| 环境激素邻苯二甲酸二丁酯的光催化降解机理探讨 |
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| 引用本文： | 费学宁,姜远光,吕岩,张天永.环境激素邻苯二甲酸二丁酯的光催化降解机理探讨[J].应用化学,2006,23(1):59-0. |
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| 作者姓名： | 费学宁 姜远光 吕岩 张天永 |
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| 作者单位： | 天津城市建设学院；天津大学 |
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| 摘 要： | 环境激素邻苯二甲酸二丁酯的光催化降解机理探讨;邻苯二甲酸二丁酯;光催化降解;降解机理;二氧化钛
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| 关 键 词： | 环境激素邻苯二甲酸二丁酯的光催化降解机理探讨 邻苯二甲酸二丁酯 光催化降解 降解机理 二氧化钛 |
| 文章编号： | 1000-0518(2006)01-0059-05 |
| 收稿时间： | 2005-02-27 |
| 修稿时间： | 2005-04-21 |
Photocatalytic Degradation of Dibutyl Phthalate in Aqueous TiO2 Suspension |
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| FEI Xue-Ning,JIANG Yuan-Guang,L Yan,ZHANG Tian-Yong.Photocatalytic Degradation of Dibutyl Phthalate in Aqueous TiO2 Suspension[J].Chinese Journal of Applied Chemistry,2006,23(1):59-0. |
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| Authors: | FEI Xue-Ning JIANG Yuan-Guang L Yan ZHANG Tian-Yong |
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| Institution: | a.Department of Environmental and Municipal Engineering, Tianjin Institute of Urban Construction, Tianjin ; b. Department of Fine Chemicals and Engineering,School of Chemical Engineering and Technology; c.Department of Environmental Engineering, School of Environmental Science and Engineering, Tianjin University, Tianjin 300072 |
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| Abstract: | The photoinduced degradation of dibutyl phthalate ( DBF) with TiO2 as the catalyst in aqueous solution was investigated under ultraviolet radiation. As a result, DBF could be degraded efficiently, and the efficiency was 80. 1 %. Acidity of the degradation system changed obviously during the degradation process. The initial pH of the solution was 6. 0, but it decreased to 3. 57 after 6 h degradation. Some photodegradation intermediates in the different photocatalytic steps were examined and analyzed by means of GC-MS. It is concluded that the photodegradation of DBP begins from the side chain and it can be decomposed to monobutyl phthalate, methyl benzoate and benzoic acid. After 6 h degradation, benzoic acid is one of the main products, which is difficult to decompose further under such experimental conditions. The probable degradation course is also brought forward in the paper. |
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| Keywords: | dibutyl phthalate photocatalytic degradation degradation mechanism titanium dioxide |
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