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	Photochemical production of carbonyl sulfide, carbon disulfide and dimethyl sulfide in a lake water
	Mu, Yujing; Du, Qianqian; Zhang, Chenglong; Liu, Junfeng; Zhang, Yuanyuan; Liu, Chengtang
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2017
卷号	51期号:0页码:146-156
关键词	Photochemical Production Carbonyl Sulfide Carbon Disulfide Dimethyl Sulfide Water
英文摘要	Photochemical production of carbonyl sulfide (COS), carbon disulfide (CS2) and dimethyl sulfide (DMS) was intensively studied in the water from the Aohai Lake of Beijing city. The lake water was found to be highly supersaturated with COS, CS2 and DMS, with their initial concentrations of 0.91 +/- 0.073 nmol/L, 0.55 +/- 0.071 nmol/L and 0.37 +/- 0.062 nmol/L, respectively. The evident photochemical production of COS and CS2 in the lake water under irradiation of 365 nm and 302 nm indicated that photochemical production of them might be the reason for their supersaturation. The similar dependence of wavelength and oxygen for photochemical production of COS, CS2 and DMS implied that they might be from the same precursors. The water cage effect was found to favor COS production but inhibit CS2 and DMS formation, indicating that COS photochemical production was mainly from direct degradation of the precursors and the formation of CS2 and DMS needed intermediates via combination of carbon-centered radicals and sulfur-centered radicals. The above assumptions were further confirmed by simulation experiments with addition of carbonyls and amino acids (cysteine and methionine), and the photochemical formation mechanisms for COS, CS2 and DMS in water were derived from the investigations. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39177]
专题	生态环境研究中心_大气环境科学实验室
推荐引用方式 GB/T 7714	Mu, Yujing,Du, Qianqian,Zhang, Chenglong,et al. Photochemical production of carbonyl sulfide, carbon disulfide and dimethyl sulfide in a lake water[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2017,51(0):146-156.
APA	Mu, Yujing,Du, Qianqian,Zhang, Chenglong,Liu, Junfeng,Zhang, Yuanyuan,&Liu, Chengtang.(2017).Photochemical production of carbonyl sulfide, carbon disulfide and dimethyl sulfide in a lake water.JOURNAL OF ENVIRONMENTAL SCIENCES,51(0),146-156.
MLA	Mu, Yujing,et al."Photochemical production of carbonyl sulfide, carbon disulfide and dimethyl sulfide in a lake water".JOURNAL OF ENVIRONMENTAL SCIENCES 51.0(2017):146-156.

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