微塑料表面土霉素的吸附-解吸机制与动力学过程

doi:DOI:10.7524/j.issn.0254-6108.2017032703

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 > 近岸生态与环境实验室

	微塑料表面土霉素的吸附-解吸机制与动力学过程
	张凯娜 ; 李嘉 ; 李晓强 ; 张华
刊名	环境化学
	2017-12-15
卷号	36 期号:12 页码:2531-2540
关键词	microplastic oxytetracycline(OTC) adsorption desorption 微塑料土霉素(OTC) 吸附解吸
ISSN号	0254-6108
DOI	DOI:10.7524/j.issn.0254-6108.2017032703
其他题名	Mechanisms and kinetics of oxytetracycline adsorptiondesorption onto microplastics
产权排序	(1) 烟台大学环境与材料工程学院 ; (2) 中国科学院海岸带环境过程与生态修复重点实验室(烟台海岸带研究所) ; (3) 中国科学院大学
文献子类	Article
英文摘要	Batch equilibrium experiments were conducted to investigate adsorption and desorption characteristics of oxytetracycline( OTC) on polyethylene( PE) and polystyrene( PS) microplastics.Scanning electron microscop ( SEM) and attenuated total reflectance-Fourier-transformed infrared spectroscopy( ATR-FTIR) were employed to study the interaction mechanisms between OTC and microplastic particles.The OTC adsorption capacities of the two microplastics were relatively weak and can be related to structural characteristics of the sorbent.Sorption amounts of OTC were as follows: PS-pure water> PE-pure water> PS-seawater> PE-seawater.Sorption isotherms of OTC on the two microplastics can be well described by the Freundlich model,and showed obvious nonlinear characteristics( n = 0.250.77).The pseudo-second order kinetic model successfully described adsorption kinetics of OTC with kinetic rates( k2) ranged from 0.0037 to 2.8 g·mg~(-1)·h~(-1).Desorption experiments showed that the cumulative desorption of OTC as follows: PS-pure water> PE-pure water> PS-seawater> PE-seawater.The result of SEM and ATR-FTIR showed that irregular features on PS-surface provided sorption sites for OTC.Van der Waals force and surface micropore filling are the two major mechanisms for the adsorption of OTC on the microplastics.
WOS关键词	Environmental Sciences & Ecology
WOS研究方向	Environmental Sciences & Ecology ; 环境科学与生态学
语种	中文
CSCD记录号	CSCD:6142836
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24297]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_污染过程与控制实验室
作者单位	1.中国科学院大学 2.中国科学院海岸带环境过程与生态修复重点实验室(烟台海岸带研究所); 3.烟台大学环境与材料工程学院;
推荐引用方式 GB/T 7714	张凯娜,李嘉,李晓强,等. 微塑料表面土霉素的吸附-解吸机制与动力学过程[J]. 环境化学,2017,36(12):2531-2540.
APA	张凯娜,李嘉,李晓强,&张华.(2017).微塑料表面土霉素的吸附-解吸机制与动力学过程.环境化学,36(12),2531-2540.
MLA	张凯娜,et al."微塑料表面土霉素的吸附-解吸机制与动力学过程".环境化学 36.12(2017):2531-2540.