| 正己烷溶液中4一氯联苯的紫外光降解研究 |
| |
| 引用本文： | 秦海丰,包华影,刘安东,侯兴刚.正己烷溶液中4一氯联苯的紫外光降解研究[J].中国化学,2006,24(3):355-359. |
| |
| 作者姓名： | 秦海丰 包华影 刘安东 侯兴刚 |
| |
| 作者单位： | [1]Department of Chemistry, Beijing Normal University, Beijing 100875, China [2]Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China （No. 2003CB415007） and the Ministry of Education of China （No. 20030027008）. |
| |
| 摘 要： | 研究了正己烷溶液中4一氯联苯的紫外光降解反应。首次讨论了正己烷溶液中多氯联苯的特征紫外吸收和光反应中氯的形成的研究，光降解的主要反应途径为一级反应的脱氯。分子中C-Cl键断裂形成联苯自由基，该自由基从溶剂分子上脱去氢形成联苯，在光照下联苯继续降解最终生成脂肪烃。联苯的紫外光降解实验进一步证明了这种机理。
|
| 关 键 词： | 光降解作用 4-氯联苯 正己烷 UV 照射 一级动力学 脱氯 |
| 收稿时间： | 2005-07-11 |
| 修稿时间： | 2005-07-112005-11-04 |
Photodegradation of 4-Chlorobiphenyl in Hexane by UV Irradiation |
| |
| Qin HaiFeng;Bao HuaYing;Liu AnDong;Hou XingGang.Photodegradation of 4-Chlorobiphenyl in Hexane by UV Irradiation[J].Chinese Journal of Chemistry,2006,24(3):355-359. |
| |
| Authors: | Qin HaiFeng;Bao HuaYing;Liu AnDong;Hou XingGang |
| |
| Abstract: | The photodegradation of 4-chlorobiphenyl in hexane by UV irradiation has been investigated. For the first time, the UV spectral changes of 4-chlorobiphenyl and formation of chloride in the photoreaction have been discussed. The main pathway for the degradation of 4-chlorobiphenyl in hexane was dechlorination to follow a ftrst order kinetics. The products were formed by the cleavage of carbon-chlorine bond to produce a biphenyl free radical, which then abstracted hydrogen from the solvent hexane to form biphenyl. With irradiation, biphenyl was also decomposed to lower hydrocarbons as the final products, which was further confirmed by the degradation experiment of biphenyl. |
| |
| Keywords: | 4-chlorobiphenyl UV irradiation hexane first order kinetics dechlorination |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国化学》浏览原始摘要信息 |
| 点击此处可从《中国化学》下载免费的PDF全文 |
