| 无水条件下气相三氯乙烯的光催化降解机理 |
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| 引用本文： | 刘鸿,成少安,王琪全,张鉴清,蒋伟川.无水条件下气相三氯乙烯的光催化降解机理[J].环境科学,1998,19(2):62-65,70. |
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| 作者姓名： | 刘鸿 成少安 王琪全 张鉴清 蒋伟川 |
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| 作者单位： | 浙江大学化学系 |
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| 摘 要： | 研究无水条件下气相三氯乙烯的光催化降解反应及其机理，结果表明三氯乙烯的降解产物对ＨＣｌ，ＣＯ２及其Ｃｌ２，，光催化降解速率方程符合Ｌａｎｇｍｕｉｒ－Ｈｉｎｓｈｅｌｗｏｏｄ公式，提出了无水条件下ＴＣＥ的光催化降解机理为空穴直接氧化机理。
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| 关 键 词： | 二氧化钛 光催化 三氯乙烯 降解 催化剂 |
| 收稿时间： | 1997/6/17 0:00:00 |
The Mechanism of Semiconductor Photocatalytic Degradation of Gaseous Trichloroethylene Without Water |
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| Liu Hong,Cheng Shao''an,Wang Qiquan,Zhang Jianqing and Jiang Weichuan.The Mechanism of Semiconductor Photocatalytic Degradation of Gaseous Trichloroethylene Without Water[J].Chinese Journal of Environmental Science,1998,19(2):62-65,70. |
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| Authors: | Liu Hong Cheng Shao'an Wang Qiquan Zhang Jianqing and Jiang Weichuan |
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| Institution: | Department of Chemistry, Zhejiang University, Hangzhou 310027;Department of Chemistry, Zhejiang University, Hangzhou 310027;Department of Chemistry, Zhejiang University, Hangzhou 310027;Department of Chemistry, Zhejiang University, Hangzhou 310027;Department of Chemistry, Zhejiang University, Hangzhou 310027 |
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| Abstract: | The photocatalytic degradation of trichloroethylene(TCE) in the gas phase without water using anatase titanium dioxide powder as catalyst was studied.It was proved that the products were HCl,CO 2 and Cl 2.The equation of photocatalytic degradation agreed with Langmuir Hinshelwood rate form.Reaction schemes of TCE were proposed as valence band hole direct oxidation. |
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| Keywords: | titanium dioxide photocatalysis trichloroethylene degradation mechanism |
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