Oxidation of propyl paraben by ferrate(VI): Kinetics, products, and toxicity assessment

doi:10.1080/10934529.2018.1459074

	Oxidation of propyl paraben by ferrate(VI): Kinetics, products, and toxicity assessment
	An, Jibin 1; Xia, Chunqiu 1; He, Jiahong 1; Feng, Huixia 2
刊名	Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
	2018-08-24
卷号	53 期号:10 页码:873-882
关键词	Degradation Enzyme kinetics Free radical reactions High performance liquid chromatography Kinetics Oxidation Propylparaben Rate constants Spectrometry Toxicity Water quality Water treatment Aquatic environments Ferrate High performance liquid chromatography/mass spectrometries Intermediate product One-electron transfer Pharmaceutical and personal care products Second-order rate constants Spectrometry technique
ISSN号	10934529
DOI	10.1080/10934529.2018.1459074
英文摘要	Propyl paraben (propyl 4-hydroxybenzoate, PPB), one of the typically used paraben species in various pharmaceutical and personal care products, has been found in different aquatic environment, which could affect the water quality and human health. In this paper, the degradation of PPB by aqueous ferrate (Fe(VI)) was investigated in different water matrix and reaction kinetics as a function of pH was determined. Intermediate products of the degradation process were isolated and characterized by the high performance liquid chromatography/mass spectrometry/mass spectrometry techniques. Acute and chronic toxicities during water treatment of PPB using Fe(VI) were calculated using the ECOSAR program at three trophic levels. The obtained apparent second-order rate constant (kapp) for PPB reaction with Fe(VI) ranged from 99.6 ± 0.4 M−1 s−1 to 15.0 ± 0.1 M−1 s−1 with the half-life (t1/2) ranging from 154 s to 1026 s at pH 6.5–10.0 for an Fe(VI) concentration of 600 μM. The proposed pathway for the oxidation of PPB by Fe(VI) involves one electron transfer of phenoxyl radical and breaking of the ether bond. In general, the oxidation of PPB by ferrate resulted in a significant decrease in toxicity at three trophic levels. © 2018, © 2018 Taylor & Francis Group, LLC.
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	Bellwether Publishing, Ltd.
WOS记录号	WOS:000440047100001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/150553]
专题	教务处（创新创业学院）
作者单位	1.Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Yongchuan; Chongqing, China; 2.School of Petrochemical Engineering, Lanzhou University of Technology, LanZhou, China
推荐引用方式 GB/T 7714	An, Jibin,Xia, Chunqiu,He, Jiahong,et al. Oxidation of propyl paraben by ferrate(VI): Kinetics, products, and toxicity assessment[J]. Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering,2018,53(10):873-882.
APA	An, Jibin,Xia, Chunqiu,He, Jiahong,&Feng, Huixia.(2018).Oxidation of propyl paraben by ferrate(VI): Kinetics, products, and toxicity assessment.Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering,53(10),873-882.
MLA	An, Jibin,et al."Oxidation of propyl paraben by ferrate(VI): Kinetics, products, and toxicity assessment".Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering 53.10(2018):873-882.