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The chlorination transformation characteristics of benzophenone-4 in the presence of iodide ions
Yang, Fan; Wei, Dongbin; Xiao, Ming; Sun, Xuefeng; Guo, Qiaorong; Liu, Yi; Du, Yuguo
2017-10-01
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
Volume58Issue:0Pages:93-101
AbstractBenzophenone-type UV filters are a group of compounds widely used to protect human skin from damage of UV irradiation. Benzophenone-4 (BP-4) was targeted to explore its transformation behaviors during chlorination disinfection treatment in the presence of iodide ions. With the help of ultra performance liquid phase chromatograph and high-resolution quadrupole time-of-flight mass spectrometer, totally fifteen halogenated products were identified, and five out of them were iodinated products. The transformation mechanisms of BP-4 involved electrophilic substitution generating mono- or di-halogenated products, which would be oxidized into esters and further hydrolyzed into phenolic derivatives. The desulfonation and decarboxylation were observed in chlorination system either. Obeying the transformation pathways, five iodinated products formed. The pH conditions of chlorination system determined the reaction types of transformation and corresponding species of products. The more important was that, the acute toxicity had significant increase after chlorination treatment on BP-4, especially in the presence of iodide ions. When the chlorination treatment was performed on ambient water spiked with BP-4 and iodide ions, iodinated by-products could be detected. (C) 2017 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Department环境化学与生态毒理学国家重点实验室
KeywordBenzophenone Chlorination Iodinated Disinfection By-products Mechanism Toxicity
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/39432
Collection环境化学与生态毒理学国家重点实验室
Recommended Citation
GB/T 7714
Yang, Fan,Wei, Dongbin,Xiao, Ming,et al. The chlorination transformation characteristics of benzophenone-4 in the presence of iodide ions[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2017,58(0):93-101.
APA Yang, Fan.,Wei, Dongbin.,Xiao, Ming.,Sun, Xuefeng.,Guo, Qiaorong.,...&Du, Yuguo.(2017).The chlorination transformation characteristics of benzophenone-4 in the presence of iodide ions.JOURNAL OF ENVIRONMENTAL SCIENCES,58(0),93-101.
MLA Yang, Fan,et al."The chlorination transformation characteristics of benzophenone-4 in the presence of iodide ions".JOURNAL OF ENVIRONMENTAL SCIENCES 58.0(2017):93-101.
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