J4

• 环境科学 • 上一篇    

二氧化钛光催化降解地下水中的六六六

李 爽, 张兰英, 王显胜, 马会强, 王 雨, 关智军   

  1. 吉林大学 环境与资源学院, 长春 130061
  • 收稿日期:2006-06-12 修回日期:1900-01-01 出版日期:2007-01-26 发布日期:2007-01-26
  • 通讯作者: 张兰英

Photocatalytic Degradation of Hexachlorocyclohexanein Groundwater with Titanium Dioxide

LI Shuang, ZHANG Lanying, WANG Xiansheng, MA Huiqiang, WANG Yu, GUAN Zhijun   

  1. College of Environment and Resources, Jilin University, Changchun 130061, China
  • Received:2006-06-12 Revised:1900-01-01 Online:2007-01-26 Published:2007-01-26
  • Contact: ZHANG Lanying

摘要: 通过实验证实了利用二氧化钛作为催化剂光降解地下水中六六六的可行性. 讨论了光照时间、 光照强度、 地下水pH值、 温度等因素对降解效果的影响. 由正交实验确定出最佳降解条件: 8 W紫外光灯管照射、 光照时间为30 min、 地下水pH=5、 温度为14 ℃, 降解率为47.96%, 考察了Fe3+,Mn2+对光降解效果的影响.

关键词: 二氧化钛, 光催化降解, 六六六

Abstract: The feasibility of photocatalytic degradation of hexachlorocyclohexane (BHC) in groundwater with titanium dioxide was proved by aseries of experimental investigations. It was shown that the degradation rate of BHC was affected by irradiation time and intensity, groundwater pH and temperature. By means of orthogonal experiment, we have concluded that the optimum degrading conditions are that the radiation time is 30 min, 8 W ultraviolet radiation, groundwater pH=5, temperature is 14 ℃. The best rate of degradation is 47.96%, and the effects of Fe3+ and Mn2+ on the photocatalytic degradation were investigated through the experiments under the best degrading conditions.

Key words: titanium dioxide, photocatalytic degradation, hexachlorocyclohexane 

中图分类号: 

  • X131.3