| 双氯酚在蒙脱石悬浮水溶液中的光降解 |
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| 引用本文： | 杨勇,李静,黄闻宇.双氯酚在蒙脱石悬浮水溶液中的光降解[J].环境科学与技术,2009,32(3). |
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| 作者姓名： | 杨勇 李静 黄闻宇 |
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| 作者单位： | 1. 华南理工大学环境科学与工程学院,广东,广州,510006;广东省环境保护职业技术学校,广东,广州,510655
2. 生物质资源化学与环境生物技术湖北省重点实验室,武汉大学,湖北,武汉,430079 |
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| 摘 要： | 利用金属卤化物灯(钠铊铟灯系列,250W,λ≥365nm)为光源,研究了蒙脱石KSF对悬浮水溶液中双氯酚的光降解及其影响因素。结果表明双氯酚能够在KSF存在下被有效的光降解。在pH3.2,KSF4g/L条件下,5mg/L双氯酚经过100min光照降解去除率达到82.7%;在pH3.0~9.0范围内,双氯酚的去除率在pH值为3时达到最高;在改姓蒙脱石KSF投放量在0~4g/L时,双氯酚的去除率随着投放量的增大而增大;同时,在反应体系中加入羧酸盐可使双氯酚的去除率有一定程度的提高。
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| 关 键 词： | 双氯酚 蒙脱石 光降解 |
Photodegradation of Dichlorophen in Montmorillonite Suspension |
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| YANG Yong,LI Jing,HUANG Wen-yu.Photodegradation of Dichlorophen in Montmorillonite Suspension[J].Environmental Science and Technology,2009,32(3). |
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| Authors: | YANG Yong LI Jing HUANG Wen-yu |
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| Institution: | YANG Yong1,2,LI Jing3,HUANG Wen-yu3 (1.Schoolof Environmental Science and Engineering,South China University of Technology,Guangzhou510006,China,2. Vocational and technological school of Guangdong environmental protection,Guangzhou 510655,3. Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory of Hubei Wuhan Universiy,Wuhan 430079,China) |
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| Abstract: | Using a 250w and 365nm metal halide lamp as light source, photocatalytic dichlorophen (DCP) in montmorillonite KSF suspension and its influencing factors were studied. Results showed that DCP can be effectively removed in aqueous solution. Under the conditions of pH 3.2, KSF 4g/L, DCP aqueous solution with initial concentration 5mg/L can reach degradation efficiency at 82.7% when irradiated for 100min. In the range of pH value from 3.0 to 9.0, removal efficiency of DCP was the highest at pH 3. Degradation r... |
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| Keywords: | dichlorophen montmorillonite photodegradation |
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