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Gamma irradiation-induced decomposition of sulfamethoxazole in aqueous solution: the influence of additives, biological inhibitory, and degradation mechanisms
Wang, Jinjin1,2,3; Guo, Ziyan1,2,3; Shen, Xiaoyu1,2,3; Guo, Qingjun4; Zhao, Yongfu5; Zhu, Shengnan1,2,3; Guo, Zhaobing1,2,3
2017-10-01
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Volume24Issue:30Pages:23658-23665
Corresponding AuthorGuo, Zhaobing(guozbnuist@163.com)
AbstractSulfamethoxazole (SMX) was decomposed by using gamma irradiation in the presence of different additives such as NO3 (-), NO2 (-), Cr(VI), 2-propanol, and tert-butanol. The results demonstrated that NO3 (-), NO2 (-), 2-propanol, and tert-butanol inhibited SMX radiolytic removal. However, there existed a synergetic effect for radiolytic removal of the mixture containing SMX and Cr(VI). At an absorbed dose of 150 Gy, the removal percentages of SMX and Cr(VI) in the mixture were 73.5 and 84.6%, respectively, which was higher than the removal percentages of 70.6 and 4.1% for the single component of SMX and Cr(VI). This provides us an insight into treating the combined pollution in micro-polluted water. The SMX radiolytic removal followed a pseudo first-order reaction kinetic model, and the rate constant ratios of center dot OH, e(aq) (-), and H center dot towards SMX radiolysis were 10.4:1:2.9. In addition, 24-h bio-inhibitory to the macroalgae of SMX solution during gamma irradiation reached the maximum of 0.85 at an adsorbed dose of 100 Gy, then gradually decreased with the increasing adsorbed dose. Based on LC-MS analysis and quantum chemical calculation, the degradation intermediates were determined and concluded that SMX radiolytic removal was mainly via center dot OH radical attack and direct decomposition of SMX molecule by gamma ray.
KeywordGamma irradiation Sulfamethoxazole Degradation mechanisms Cr(VI) Biological toxicity
DOI10.1007/s11356-017-0006-2
WOS KeywordANTIBIOTICS ; WATER ; DISCHARGE ; CHINA
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41373023] ; National Natural Science Foundation of China[91544229/002] ; National Natural Science Foundation of China[41625006] ; Jiangsu Province 333 Talent Project ; Jiangsu Student Innovation Training Program DMS formation of typical HAB species in the Yangtze estuary adjacent waters under polluted conditions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Jiangsu Province Qing Lan Project
Funding OrganizationNational Natural Science Foundation of China ; Jiangsu Province 333 Talent Project ; Jiangsu Student Innovation Training Program DMS formation of typical HAB species in the Yangtze estuary adjacent waters under polluted conditions ; Priority Academic Program Development of Jiangsu Higher Education Institutions ; Jiangsu Province Qing Lan Project
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000412930300022
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/62356
Collection中国科学院地理科学与资源研究所
Corresponding AuthorGuo, Zhaobing
Affiliation1.Collaborat Innovat Ctr Atmospher Environm & Equip, Nanjing 210044, Jiangsu, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Nanjing 210044, Jiangsu, Peoples R China
3.Jiangsu Key Lab Atmospher Environm Monitoring & P, Nanjing 210044, Jiangsu, Peoples R China
4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China
5.Jiangsu Acad Agr Sci, Inst Applicat Atom Energy Agr, Nanjing 210014, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jinjin,Guo, Ziyan,Shen, Xiaoyu,et al. Gamma irradiation-induced decomposition of sulfamethoxazole in aqueous solution: the influence of additives, biological inhibitory, and degradation mechanisms[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(30):23658-23665.
APA Wang, Jinjin.,Guo, Ziyan.,Shen, Xiaoyu.,Guo, Qingjun.,Zhao, Yongfu.,...&Guo, Zhaobing.(2017).Gamma irradiation-induced decomposition of sulfamethoxazole in aqueous solution: the influence of additives, biological inhibitory, and degradation mechanisms.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(30),23658-23665.
MLA Wang, Jinjin,et al."Gamma irradiation-induced decomposition of sulfamethoxazole in aqueous solution: the influence of additives, biological inhibitory, and degradation mechanisms".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.30(2017):23658-23665.
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