Effect of gastric fluid on adsorption and desorption of endocrine disrupting chemicals on microplastics

doi:10.1007/s11783-022-1525-8

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Effect of gastric fluid on adsorption and desorption of endocrine disrupting chemicals on microplastics
	Wu, Jie 3,4,5; Lu, Jian 1,3,4,5; Wu, Jun 2
刊名	FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
	2022-08-01
卷号	16 期号:8 页码:13
关键词	Microplastics Gastric fluid Endocrine-disrupting chemicals Adsorption Desorption
ISSN号	2095-2201
DOI	10.1007/s11783-022-1525-8
通讯作者	Lu, Jian(jlu@yic.ac.cn)
英文摘要	Microplastics and endocrine disrupting chemicals are emerging pollutants in the marine environment because of their potential hazards. The effect of gastric fluid on the adsorption and desorption of 17 beta-estradiol (E2) and 17 alpha-ethynylestradiol (EE2) to microplastics was investigated. The adsorption and desorption isotherms of E2/EE2 on microplastics could be well fitted by the Freundlich model while the Gibbs free energy of these processes were negative, proving that the reaction occurred spontaneously on the heterogeneous surface of the microplastics. Desorption ratios of EE2 (55%-59%) on PVC were larger than that of E2 (49%-55%) to indicate that EE2 was less stable in gastric fluid, which could be explained by the fact that the hydrophobicity of EE2 was greater than E2. E2/EE2 were more easily desorbed from PVC in the gastric fluid and the desorption amount (5.25-12.91/7.19-17.86 mu g/g) increased by 2.51 times in comparison with that in saline solution (2.22-7.81/2.87-10.80 mu g/g). The decrease of pH and the increase of ionic strength in gastric fluid could further strengthen desorption of E2/EE2 from PVC. The promotion of gastric juice on desorption of PVC was achieved by reducing the hydrophobicity of the PVC surface. The desorption rate of E2/EE2 at 18 degrees C and 38 degrees C was respectively 44%-47%/46%-50% and 49%-55%/56%-59%, indicating that PVC loaded with E2/EE2 had a relatively greater risk of releasing pollutants in the gastric fluid of constant temperature marine organisms while higher temperatures exposed higher hazards for variable temperature animals. The interaction between microplastics and pollutants might be mainly hydrophobic interaction. (C) Higher Education Press 2022
WOS关键词	PERSISTENT ORGANIC POLLUTANTS ; ACCUMULATION ; SURFACE ; SOILS ; PH
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000733897900002
资助机构	National Natural Science Foundation of China ; Taishan Scholar Program of Shandong Province ; Science and Technology Service Network Initiative of the Chinese Academy of Sciences ; Two-Hundred Talents Plan of Yantai ; Wanhua Chemical Group Co. Ltd.
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/31312]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Lu, Jian
作者单位	1.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 2.Harbin Engn Univ, Yantai Res Inst, Yantai 264006, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.YICCAS, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Peoples R China 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Wu, Jie,Lu, Jian,Wu, Jun. Effect of gastric fluid on adsorption and desorption of endocrine disrupting chemicals on microplastics[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2022,16(8):13.
APA	Wu, Jie,Lu, Jian,&Wu, Jun.(2022).Effect of gastric fluid on adsorption and desorption of endocrine disrupting chemicals on microplastics.FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,16(8),13.
MLA	Wu, Jie,et al."Effect of gastric fluid on adsorption and desorption of endocrine disrupting chemicals on microplastics".FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 16.8(2022):13.