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Efficient activation of peroxymonosulfate by hollow cobalt hydroxide for degradation of ibuprofen and theoretical study
Ma, Mingfeng1; Chen, Long2; Zhao, Jingzhu1; Liu, Wen2,3,4; Ji, Haodong2,3
2019-12-01
Source PublicationCHINESE CHEMICAL LETTERS
ISSN1001-8417
Volume30Issue:12Pages:2191-2195
AbstractHollow microsphere structure cobalt hydroxide (h-Co(OH)(2)) was synthesized via an optimized solvothermal-hydrothermal process and applied to activate peroxymonosulfate (PMS) for degradation of a typical pharmaceutically active compound, ibuprofen (IBP). The material characterizations confirmed the presence of the microscale hollow spheres with thin nanosheets shell in h-Co(OH)(2), and the crystalline phase was assigned to alpha-Co(OH)(2). h-Co(OH)(2) could efficiently activate PMS for radicals production, and 98.6% of IBP was degraded at 10 min. The activation of PMS by h-Co(OH)(2) was a pH-independent process, and pH 7 was the optimum condition for the activation-degradation system. Scavenger quenching test indicated that the sulfate radical (SO4 center dot-) was the primary reactive oxygen species for IBP degradation, which contributed to 75.7%. Fukui index (f(-)) based on density functional theory (DFT) calculation predicted the active sites of IBP molecule for SO4 center dot- attack, and then IBP degradation pathway was proposed by means of intermediates identification and theoretical calculation. The developed hollow Co(OH)(2) used to efficiently activate PMS is promising and innovative alternative for organic contaminants removal from water and wastewater. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
Department城市与区域生态国家重点实验室
KeywordCobalt hydroxid Pharmaceuticals Peroxymonosulfate Activation DFT calculation
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/42407
Collection城市与区域生态国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Peking Univ, Coll Environm Sci & Engn, Key Lab Water & Sediment Sci, Minist Educ, Beijing 100871, Peoples R China
4.Peking Univ, Beijing Innovat Ctr Engn Sci & Adv Technol BIC ES, Beijing 100871, Peoples R China
5.Peking Univ, Beijing Engn Res Ctr Adv Wastewater Treatment, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Ma, Mingfeng,Chen, Long,Zhao, Jingzhu,et al. Efficient activation of peroxymonosulfate by hollow cobalt hydroxide for degradation of ibuprofen and theoretical study[J]. CHINESE CHEMICAL LETTERS,2019,30(12):2191-2195.
APA Ma, Mingfeng,Chen, Long,Zhao, Jingzhu,Liu, Wen,&Ji, Haodong.(2019).Efficient activation of peroxymonosulfate by hollow cobalt hydroxide for degradation of ibuprofen and theoretical study.CHINESE CHEMICAL LETTERS,30(12),2191-2195.
MLA Ma, Mingfeng,et al."Efficient activation of peroxymonosulfate by hollow cobalt hydroxide for degradation of ibuprofen and theoretical study".CHINESE CHEMICAL LETTERS 30.12(2019):2191-2195.
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