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Photochlorination of aniline in Fe3+-containing saline water under simulated solar light irradiation

文献类型：期刊论文

作者Wu, Lei1,2; Hu, Xuefeng1
刊名ENVIRONMENTAL CHEMISTRY
出版日期2012
卷号9期号:6页码:558-563
关键词chloroanilines
ISSN号1448-2517
产权排序[Wu, Lei; Hu, Xuefeng] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China; [Wu, Lei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
通讯作者Hu, XF (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China.,xfhu@yic.ac.cn
中文摘要Photochlorination of aniline was observed in aqueous solutions containing dissolved Fe-III and chloride ions under simulated solar light irradiation. Effects of O-2, Cl-, Fe3+ and pH on the formation of chloroanilines (CAs) were investigated. para-chloroaniline (4CA) was identified as the main chlorinated product. The formation of 4CA is enhanced with increased concentrations of Cl- or Fe3+, and decreased pH, whereas oxygen plays a negligible role in the process. The results indicate that, Cl-center dot is formed mainly by the photodissociation of FeCl2+-FeCl2+ complexes, and reacts with Cl- to produce Cl-2(center dot-). Aniline is then oxidised by Cl-2(center dot-) into an anilino radical cation, which further reacts with Cl-2(center dot-) to generate CAs. The photochlorination of aniline in natural seawater was also observed. Other phototransformation products of aniline were detected and a transformation pathway was proposed. This work provides evidence for the photochemical chlorination path of aniline-based aromatic amines in aqueous solutions.
英文摘要Photochlorination of aniline was observed in aqueous solutions containing dissolved Fe-III and chloride ions under simulated solar light irradiation. Effects of O-2, Cl-, Fe3+ and pH on the formation of chloroanilines (CAs) were investigated. para-chloroaniline (4CA) was identified as the main chlorinated product. The formation of 4CA is enhanced with increased concentrations of Cl- or Fe3+, and decreased pH, whereas oxygen plays a negligible role in the process. The results indicate that, Cl-center dot is formed mainly by the photodissociation of FeCl2+-FeCl2+ complexes, and reacts with Cl- to produce Cl-2(center dot-). Aniline is then oxidised by Cl-2(center dot-) into an anilino radical cation, which further reacts with Cl-2(center dot-) to generate CAs. The photochlorination of aniline in natural seawater was also observed. Other phototransformation products of aniline were detected and a transformation pathway was proposed. This work provides evidence for the photochemical chlorination path of aniline-based aromatic amines in aqueous solutions.
学科主题Chemistry, Analytical; Environmental Sciences
研究领域[WOS]Chemistry ; Environmental Sciences & Ecology
关键词[WOS]AQUEOUS-SOLUTION ; ORGANIC-COMPOUNDS ; FENTON PROCESSES ; ELECTRO-FENTON ; BISPHENOL-A ; DEGRADATION ; OXIDATION ; DERIVATIVES ; MECHANISM ; KINETICS
收录类别SCI
资助信息National Natural Science Foundation of China [41076040, 20807036]
原文出处http://dx.doi.org/10.1071/EN12143
语种英语
WOS记录号WOS:000314458800008
公开日期2013-03-08
源URL[http://ir.yic.ac.cn/handle/133337/6031]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Lei,Hu, Xuefeng. Photochlorination of aniline in Fe3+-containing saline water under simulated solar light irradiation[J]. ENVIRONMENTAL CHEMISTRY,2012,9(6):558-563.
APA Wu, Lei,&Hu, Xuefeng.(2012).Photochlorination of aniline in Fe3+-containing saline water under simulated solar light irradiation.ENVIRONMENTAL CHEMISTRY,9(6),558-563.
MLA Wu, Lei,et al."Photochlorination of aniline in Fe3+-containing saline water under simulated solar light irradiation".ENVIRONMENTAL CHEMISTRY 9.6(2012):558-563.

入库方式： OAI收割

来源：烟台海岸带研究所

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