| UV/H2O2体系光降解邻苯二甲酸二丁酯研究 |
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| 引用本文： | 陈德强,吴振斌,成水平,钟 飞,陈义群.UV/H2O2体系光降解邻苯二甲酸二丁酯研究[J].环境科学研究,2005,18(6):50-52. |
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| 作者姓名： | 陈德强 吴振斌 成水平 钟 飞 陈义群 |
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| 作者单位： | 1.河海大学,环境科学与工程学院,江苏,南京,210098;中国科学院,水生生物研究所,淡水生态与生物技术国家重点实验室,湖北,武汉,430072 |
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| 基金项目： | 国家杰出科学青年基金项目（39925007）;欧盟科技合作项目（ERBICl8CT960059）;中国科学院知识创新工程重要方向项目（KSCX2-SW-102） |
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| 摘 要： | 研究了邻苯二甲酸二丁酯(DBP)在UV/H2O2体系中的光降解.结果表明:DBP在UV/H2O2体系中能很好地降解,且其光降解速率大于在单一UV辐照下的光降解速率;在pH为中性条件下DBP的光降解速率最快,而在强酸性或碱性条件下DBP的光降解速率均较低;在一定H2O2浓度范围内,DBP的光降解速率随c(H2O2)的升高而增大,但当c(H2O2)过高时,其对·OH自由基的清除作用使DBP的光降解速率减慢.DBP的光降解速率随其初始质量浓度的增大而降低;在实验质量浓度范围内,DBP的光降解速率常数近似与其初始质量浓度成负一级反应动力学关系.
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| 关 键 词： | 邻苯二甲酸二丁酯 UV/H2O2体系 光降解 |
| 文章编号： | 1001-6929（2005）06-0050-03 |
| 收稿时间： | 2005-03-24 |
| 修稿时间： | 2005-03-24 |
Photodegradation of Dibutyl Phthalate by UV/H2O2 System |
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| CHEN De-qiang,WU Zhen-bin,CHENG Shui-ping,ZHONG Fei and CHEN Yi-qun.Photodegradation of Dibutyl Phthalate by UV/H2O2 System[J].Research of Environmental Sciences,2005,18(6):50-52. |
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| Authors: | CHEN De-qiang WU Zhen-bin CHENG Shui-ping ZHONG Fei and CHEN Yi-qun |
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| Institution: | 1.College of Environmental Science and Engineering,Hohai University,Nanjing 210098,China;State Key Laboratory of Freshwater Ecology and Biotechnology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China2.State Key Laboratory of Freshwater Ecology and Biotechnology,Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China3.College of Environmental Science and Engineering,Hohai University,Nanjing 210098,China |
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| Abstract: | The photodegradation of dibutyl phthalate（DBP） in UV/H2O2 systems was studied.The results showed that DBP was more effectively degraded by UV/H2O2 system than by UV light.The DBP displayed faster degradation rate in neutral medium than in acid or alkali medium.The rate of destruction of DBP increased when increasing concentration of H2O2,but the effect decreased at high level of H2O2 due to its removal effect to ·OH.The initial mass concentration of DBP presented negative effect to pseudo-first-order reaction kinetics constant of its photodegradation in UV/H2O2 system. |
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| Keywords: | dibutyl phthalate UV/H2O2 system photodegradation |
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