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

	Photochlorination of aniline in Fe3+-containing saline water under simulated solar light irradiation
	Wu, Lei 1,2; Hu, Xuefeng1
发表期刊	ENVIRONMENTAL CHEMISTRY
ISSN	1448-2517
	2012
卷号	9 期号:6 页码:558-563
关键词	Chloroanilines
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
作者部门	中科院海岸带环境过程与生态修复重点实验室
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.; 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.
文章类型	Article
资助机构	National Natural Science Foundation of China [41076040, 20807036]
收录类别	SCI
语种	英语
关键词[WOS]	AQUEOUS-SOLUTION ; ORGANIC-COMPOUNDS ; FENTON PROCESSES ; ELECTRO-FENTON ; BISPHENOL-A ; DEGRADATION ; OXIDATION ; DERIVATIVES ; MECHANISM ; KINETICS
研究领域[WOS]	Chemistry ; Environmental Sciences & Ecology
WOS记录号	WOS:000314458800008
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/6030
专题	中国科学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.

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