DOI: 10.1016/j.watres.2018.02.045
Scopus记录号: 2-s2.0-85042692702
论文题名: Electrochemical reductive dehalogenation of iodine-containing contrast agent pharmaceuticals: Examination of reactions of diatrizoate and iopamidol using the method of rotating ring-disc electrode (RRDE)
作者: Yan M. ; Chen Z. ; Li N. ; Zhou Y. ; Zhang C. ; Korshin G.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 136 起始页码: 104
结束页码: 111
语种: 英语
英文关键词: Diatrizoate
; Electrochemical
; Iodine
; Iopamidol
; NOM
; Rotating ring-disc electrode
Scopus关键词: Biological materials
; Contrast media
; Dehalogenation
; Iodine
; Mass transfer
; Phenols
; Reduction
; Diatrizoate
; Electrochemical
; Hydrodynamic conditions
; Iodinated contrast media
; Iopamidol
; Natural organic matters
; Reductive dehalogenation
; Rotating ring disc electrode
; Electrochemical electrodes
; catechol
; diatrizoate
; guaiacol
; iopamidol
; natural organic matter
; resorcinol
; contrast medium
; diatrizoate
; drug
; iodine
; iopamidol
; chemical compound
; chemical reaction
; concentration (composition)
; degradation
; drug
; electrochemical method
; electrode
; experimental study
; inorganic matter
; iodine
; reduction
; Article
; chemical interaction
; chemical structure
; concentration (parameters)
; degradation
; dehalogenation
; electrochemical analysis
; hydrodynamics
; oxidation
; priority journal
; waste water management
; chemistry
; devices
; electrochemical analysis
; electrode
; evaluation study
; halogenation
; oxidation reduction reaction
; procedures
; water pollutant
; Contrast Media
; Diatrizoate
; Electrochemical Techniques
; Electrodes
; Halogenation
; Iodine
; Iopamidol
; Oxidation-Reduction
; Pharmaceutical Preparations
; Water Pollutants, Chemical
英文摘要: This study examined the electrochemical (EC) reduction of iodinated contrast media (ICM) exemplified by iopamidol and diatrizoate. The method of rotating ring-disc electrode (RRDE) was used to elucidate rates and mechanisms of the EC reactions of the selected ICMs. Experiments were carried at varying hydrodynamic conditions, concentrations of iopamidol, diatrizoate, natural organic matter (NOM) and model compounds (resorcinol, catechol, guaiacol) which were used to examine interactions between products of the EC reduction of ICMs and halogenation-active species. The data showed that iopamidol and diatrizoate were EC-reduced at potentials < −0.45 V vs. s.c.e. In the range of potentials −0.65 to −0.85 V their reduction was mass transfer-controlled. The presence of NOM and model compounds did not affect the EC reduction of iopamidol and diatrizoate but active iodine species formed as a result of the EC-induced transformations of these ICMs reacted readily with NOM and model compounds. These data provide more insight into the nature of generation of iodine-containing by-products in the case of reductive degradation of ICMs. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112852
Appears in Collections: 气候减缓与适应
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作者单位: Department of Environmental Engineering, Peking University, The Key Laboratory of Water and Sediment Sciences, Ministry of Education, Beijing, 100871, China; School of Resources and Materials, Northeastern University at Qinhuangdao, No. 143, Taishan Road, Qinhuangdao, Hebei 066004, China; Department of Civil and Environmental Engineering, University of Washington, Box 352700, Seattle, WA 98195-2700, United States
Recommended Citation:
Yan M.,Chen Z.,Li N.,et al. Electrochemical reductive dehalogenation of iodine-containing contrast agent pharmaceuticals: Examination of reactions of diatrizoate and iopamidol using the method of rotating ring-disc electrode (RRDE)[J]. Water Research,2018-01-01,136