| 金属离子和氧化剂对4-氯酚光化学降解的影响 |
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| 引用本文： | 郁志勇,宋林,朱燕,孙震,唐晓纯.金属离子和氧化剂对4-氯酚光化学降解的影响[J].应用科学学报,2003,21(4):419-422. |
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| 作者姓名： | 郁志勇 宋林 朱燕 孙震 唐晓纯 |
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| 作者单位： | 中国人民大学环境学院 北京 100872 |
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| 基金项目： | 中国人民大学科研资助项目(1999001) |
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| 摘 要： | 在实验条件下,Mn2+/Fe2+/Cu2+/Zn2+/Al3+/Y3+/La3+(特别是Y3+和La3+)、KMnO4/K2S2O8/KClO3/KClO4/KBrO3/KIO3对4氯酚光化学降解起加速作用,且随其浓度增大而增强.KIO4对4氯酚光化学降解起抑制作用,且随其浓度增大而增强.KClO3/KBrO3+Y3+对4CP光化学降解的加速作用更为显著.无光照时,KMnO4、KIO4+Mn2+/Fe2+都能够使4氯酚立刻发生化学降解,尤其以KMnO4、KIO4+Mn2+的作用更为显著.
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| 关 键 词： | 氧化剂 光化学降解 4-氯酚 金属离子 |
| 文章编号： | 0255-8297(2003)04-0419-04 |
| 收稿时间： | 2002-07-24 |
| 修稿时间： | 2003-01-14 |
Effects of Metal Ions and Oxidants on the Photochemical Degradation of 4-Chlorophenol |
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| YU Zhi-yong,SONG Lin,ZHU Yan,SUN Zhen,TANG Xiao-chun.Effects of Metal Ions and Oxidants on the Photochemical Degradation of 4-Chlorophenol[J].Journal of Applied Sciences,2003,21(4):419-422. |
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| Authors: | YU Zhi-yong SONG Lin ZHU Yan SUN Zhen TANG Xiao-chun |
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| Institution: | School of Environment, Renmin University of China, Beijing 100872, China |
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| Abstract: | Under experimental conditions, Mn2+/Fe2+/Cu2+/Zn2+/Al3+/Y3+/La3+(especially for Y3+and La3+),KMnO4/K2S2O8/KClO3/KClO4/KBrO3/KIO3 can accelerate the photochemical degradation of 4chlorophenol(4CP), and this acceleration effect increases with the increase of concentration of metal ions and oxidants. KIO4 can inhibit the photochemical degradation of 4CP, and this inhibition effect increases with the increase of the concentration of KIO4. Cooperative effect of KClO3/KBrO3+Y3+ on the photochemical degradation of 4CP is more striking. Without illumination, KMnO4, KIO4+Mn2+/Fe2+ can cause 4CP to be oxygenated at once, the effects of KMnO4 and KIO4+Mn2+ are especially striking. |
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| Keywords: | 4chlorophenol metal ions oxidants photochemical degradation |
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