DOI: 10.1016/j.watres.2019.01.011
Scopus记录号: 2-s2.0-85060886248
论文题名: Enhanced transformation of sulfonamide antibiotics by manganese(IV) oxide in the presence of model humic constituents
作者: Song Y. ; Jiang J. ; Ma J. ; Zhou Y. ; von Gunten U.
刊名: Water Research
ISSN: 431354
出版年: 2019
起始页码: 200
结束页码: 207
语种: 英语
英文关键词: Cross-coupling
; Manganese oxide (MnO 2 )
; Mediators
; Metal ions
; Regeneration
; Sulfonamide antibiotics
Scopus关键词: Amides
; Antibiotics
; Calcium compounds
; Ionization of liquids
; Liquid chromatography
; Manganese oxide
; Mass spectrometry
; Metal ions
; Metals
; Oxidation
; Sulfur compounds
; Cross-coupling products
; Cross-couplings
; Mediators
; Oxidative capacity
; Regeneration
; Sulfamethoxazole (SMX)
; Sulfonamide antibiotics
; Triple-quadrupole mass spectrometry
; Magnesium compounds
; acetosyringone
; benzoquinone
; manganese oxide
; metal ion
; mustard gas
; sulfadiazine plus sulfadimidine
; sulfamethizole
; sulfamethoxazole
; sulfapyridine
; sulfathiazole
; sulfonamide
; tannin
; antibiotics
; chemical reaction
; humic substance
; manganese oxide
; mass spectrometry
; numerical model
; oxidation
; transformation
; Article
; chemical reaction kinetics
; comparative study
; controlled study
; cross coupling reaction
; drug transformation
; high performance liquid chromatography
; liquid chromatography
; nucleophilicity
; pH
; pore size
; priority journal
; reaction analysis
; retention time
; surface property
; triple quadrupole mass spectrometry
; waste water management
英文摘要: In this study, a manganese(IV) oxide-mediator (MnO 2 -mediator) system for the abatement of sulfonamide antibiotics was evaluated. Two simple model humic constituents, syringaldehyde (SA) and acetosyringone (AS), could promote the transformation of sulfonamides at pH 5–8. Two additional potential mediators, tannic acid and 2,2′-azino-bis(3-ethylbenzothiazoline)-6-sulfonate (ABTS), had negligible enhancement on the transformation of sulfonamides by MnO 2 . The enhancing effect was attributed to the reaction of the oxidized mediator (i.e., phenoxy radical or benzoquinone-like compounds) produced from the oxidation of the mediators by MnO 2 with SMX. Thereby cross-coupling products from sulfamethoxazole (SMX) with oxidized SA were formed in the MnO 2 -SA system, which was confirmed by liquid chromatography/electrospray ionization-triple quadrupole mass spectrometry. Coexisting metal ions (i.e., Ca(II), Mg(II) and Mn(II)) showed inhibitory effects in the order of Mn(II)> Ca(II)> Mg(II). For repetitive runs of the MnO 2 -SA-SMX system, MnO 2 lost its oxidative capacity due to the sorption of Mn(II) on the reactive sites of the MnO 2 surface. A full regeneration of partially deactivated MnO 2 by oxidation of the sorbed Mn(II) with Mn(VII) could be achieved. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/121981
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou, 510006, China; Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China; School of Architecture, Civil and Environmental Engineering (ENAC), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland; Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, Düebendorf, CH-8600, Switzerland; State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China
Recommended Citation:
Song Y.,Jiang J.,Ma J.,et al. Enhanced transformation of sulfonamide antibiotics by manganese(IV) oxide in the presence of model humic constituents[J]. Water Research,2019-01-01