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应用科学学报 ›› 2003, Vol. 21 ›› Issue (4): 419-422.

• 论文 • 上一篇    下一篇

金属离子和氧化剂对4-氯酚光化学降解的影响

郁志勇, 宋林, 朱燕, 孙震, 唐晓纯   

  1. 中国人民大学环境学院 北京 100872
  • 收稿日期:2002-07-24 修回日期:2003-01-14 出版日期:2003-12-10 发布日期:2003-12-10
  • 作者简介:郁志勇(1966-),男,江苏徐州人,副教授.
  • 基金资助:
    中国人民大学科研资助项目(1999001)

Effects of Metal Ions and Oxidants on the Photochemical Degradation of 4 Chlorophenol

YU Zhi-yong, SONG Lin, ZHU Yan, SUN Zhen, TANG Xiao-chun   

  1. School of Environment, Renmin University of China, Beijing 100872, China
  • Received:2002-07-24 Revised:2003-01-14 Online:2003-12-10 Published:2003-12-10

PDF

62

被引次数

28

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.

关键词: 氧化剂, 光化学降解, 4-氯酚, 金属离子

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.

Key words: metal ions, photochemical degradation, 4chlorophenol, oxidants

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