Mitigating 17α-ethynylestradiol water contamination through binding and photosensitization by dissolved humic substances

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• 作者：Dong Ren^a ; Bin Huang^a ; Benqin Yang^a ; Xuejun Pan^a ; ^{xjpan@kmust.edu.cn} ; Dionysios D. Dionysiou^b ; ^{dionysios.d.dionysiou@uc.edu}
• 关键词：Photodegradation ; Binding role ; Reactive species ; Humic substances ; Phytotoxicity
• 刊名：Journal of Hazardous Materials
• 出版年：2017
• 出版时间：5 April 2017
• 年：2017
• 卷：327
• 期：Complete
• 页码：197-205
• 全文大小：1600 K
• 卷排序：327

文摘

Ethynylestradiol binds to humic and fulvic acids by H-bonding and π-π interactions. Photosensitization by HS depends on reactive species and extent of binding. Triplet-state HS induces ethynylestradiol degradation by abstracting electrons. Chemicals with high affinity for HS can inhibit ethynylestradiol photodegradation. Ethynylestradiol degradation products are toxic to wheat, rice and Ormosia plants.