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A novel mechanism of bisphenol A removal during electro-enzymatic oxidative process: Chain reactions from self-polymerization to cross-coupling oxidation
Li, Haitao1,3; Zhao, He2,3; Liu, Chenming1,3; Li, Yuping2,3; Cao, Hongbin1,3; Zhang, Yi1,2
2013-08-01
Source PublicationCHEMOSPHERE
Volume92Issue:10Pages:1294-1300
AbstractThe catalyzed removal of bisphenol A (BPA) by a horseradish peroxidase (HRP) cathode in the presence of humic acid (HA) was investigated. At an optimal condition, the removal of BPA achieved 100% within 2 min reaction. In the electro-enzymatic process, products were analyzed by high performance liquid chromatography with diode array detector (HPLC-DAD) and high performance size exclusion chromatography (HPSEC). HPLC-DAD results showed that BPA was oxidized into self-polymers and then self-polymers as important intermediate products decreased and disappeared. HPSEC results showed the order of molecular weight (MW): HA + BPA cross-coupling products > HA self-coupling products > initial HA. According to above results, a novel mechanism of BPA transformation in the presence of HA was proposed in electro-enzymatic process. In summary, under oxidation of in situ hydrogen peroxide on HRP electrode, the BPA first are polymerized into self-polymers, and then, the polymers may be incorporated into HA matrix and finally larger MW of BPA(n)-HA might be formed. The presence of HA can provide chain reactions from BPA self-polymerization to cross-coupling oxidation. Therefore, in the presence of HA, the electro-enzymatic oxidation is an effective way to improve BPA removal. (C) 2013 Elsevier Ltd. All rights reserved.
KeywordBisphenol a Humic Acid Electro-enzymatic Catalysis Cross-coupling Oxidation Endocrine Disrupting Chemicals
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS KeywordIMMOBILIZED PEROXIDASE ENZYME ; ORGANIC-MATTER ; HUMIC SUBSTANCES ; WASTE-WATER ; DEGRADATION ; CONSTITUENTS ; ADSORPTION ; CONVERSION ; LEACHATE ; FENTON
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000323142000004
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13647
Collection研究所(批量导入)
Affiliation1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Res Ctr Proc Pollut Control, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Haitao,Zhao, He,Liu, Chenming,et al. A novel mechanism of bisphenol A removal during electro-enzymatic oxidative process: Chain reactions from self-polymerization to cross-coupling oxidation[J]. CHEMOSPHERE,2013,92(10):1294-1300.
APA Li, Haitao,Zhao, He,Liu, Chenming,Li, Yuping,Cao, Hongbin,&Zhang, Yi.(2013).A novel mechanism of bisphenol A removal during electro-enzymatic oxidative process: Chain reactions from self-polymerization to cross-coupling oxidation.CHEMOSPHERE,92(10),1294-1300.
MLA Li, Haitao,et al."A novel mechanism of bisphenol A removal during electro-enzymatic oxidative process: Chain reactions from self-polymerization to cross-coupling oxidation".CHEMOSPHERE 92.10(2013):1294-1300.
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