Enhanced adsorption of oxytetracycline to weathered microplastic polystyrene: Kinetics, isotherms and influencing factors

doi:10.1016/j.envpol.2018.09.122

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 > 污染过程与控制实验室

	Enhanced adsorption of oxytetracycline to weathered microplastic polystyrene: Kinetics, isotherms and influencing factors
	Zhang, Haibo ; Wang, Jiaqing ; Zhou, Bianying ; Zhou, Yang ; Dai, Zhenfei ; Zhou, Qian ; Christie, Peter ; Luo, Yongming
刊名	ENVIRONMENTAL POLLUTION
	2018-12
卷号	243 期号:B 页码:1550-1557
关键词	Antibiotics Adsorption Microplastics Polystyrene foam Aging surface
ISSN号	0269-7491
DOI	10.1016/j.envpol.2018.09.122
产权排序	[Zhang, Haibo ; Wang, Jiaqing ; Zhou, Bianying] Zhejiang Agr & Forestry Univ, Sch Environm & Resources, Hangzhou 311300, Zhejiang, Peoples R China ; [Christie, Peter ; Luo, Yongming] Chinese Acad Sci, Nanjing Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China ; [Zhou, Yang ; Dai, Zhenfei ; Zhou, Qian] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
文献子类	Article
英文摘要	Microplastic polystyrene foam has been found widely in the environment and is readily transported by wind or water. Beached and virgin foams of size 0.45-1 mm were prepared as sorbents to study oxytetracycline sorption. Enhanced adsorption were found in the beached foams compared to the virgin foams, corresponding to the higher specific surface area, micropore area and the degree of oxidation of the former. The Freundlich K-f value was 894 +/- 84 ((mg kg(-1)) (mg L-1)(1/n))for oxytetracycline adsorption on the beached foams, approximately twice as high as on the virgin foams. Effects of solution pH on adsorption to the beached foams were more pronounced to the virgin foams. Maximum adsorption occurred at pH 5 at which electrostatic repulsion between the microplastic surface and the oxytetracycline zwitterion was minimal, indicating that electrostatic interaction may have regulated adsorption. Moreover, H-bonding and multivalent cationic bridging mechanisms may also have affected the adsorption of oxytetracycline to the beached foams as reflected by the ionic effects. Adsorption was promoted more in the presence of humic acid than of fulvic acid, perhaps owing to pi-pi conjugation between the humic acid and the microplastic surface which led to enhanced electrostatic attraction for oxytetracycline. This study suggests that weathered polystyrene foams may act as carriers of antibiotics in the environment and their potential risks to ecosystem and human health merit further investigation. (C) 2018 Elsevier Ltd. All rights reserved.
WOS关键词	SOUTH CHINA ; ORGANIC-MATTER ; HUMIC-ACID ; BOHAI SEA ; ANTIBIOTICS ; SORPTION ; TETRACYCLINE ; BEACHES ; DEBRIS ; WATER
WOS研究方向	Environmental Sciences
语种	英语
WOS记录号	WOS:000449892700080
资助机构	National Natural Science Foundation of China [41771351] ; Zhejiang Agriculture and Forestry University [2017FR021] ; Key Project of the Chinese Academy of Sciences [QYZDJ-SSW-DQC05]
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24587]
专题	烟台海岸带研究所_污染过程与控制实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Zhejiang Agr & Forestry Univ, Sch Environm & Resources, Hangzhou 311300, Zhejiang, Peoples R China; 3.Chinese Acad Sci, Nanjing Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China;
推荐引用方式 GB/T 7714	Zhang, Haibo,Wang, Jiaqing,Zhou, Bianying,et al. Enhanced adsorption of oxytetracycline to weathered microplastic polystyrene: Kinetics, isotherms and influencing factors[J]. ENVIRONMENTAL POLLUTION,2018,243(B):1550-1557.
APA	Zhang, Haibo.,Wang, Jiaqing.,Zhou, Bianying.,Zhou, Yang.,Dai, Zhenfei.,...&Luo, Yongming.(2018).Enhanced adsorption of oxytetracycline to weathered microplastic polystyrene: Kinetics, isotherms and influencing factors.ENVIRONMENTAL POLLUTION,243(B),1550-1557.
MLA	Zhang, Haibo,et al."Enhanced adsorption of oxytetracycline to weathered microplastic polystyrene: Kinetics, isotherms and influencing factors".ENVIRONMENTAL POLLUTION 243.B(2018):1550-1557.