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In-situ kinetic and thermodynamic study of 2,4-dichlorophenoxyacetic acid adsorption on molecularly imprinted polymer based solid-phase microextraction coatings

文献类型：期刊论文

作者Yang, Xiaoxia3; Muhammad, Turghun3; Yang, Jingjing3; Yasen, Ayzukram3; Chen, Lingxin1,2
刊名SENSORS AND ACTUATORS A-PHYSICAL
出版日期2020-10-01
卷号313页码:8
关键词Adsorption kinetics Adsorption thermodynamics 2,4-Dichlorophenoxyacetic acid Molecularly imprinted polymer SPME coating Fiber-optic sensing
ISSN号0924-4247
DOI10.1016/j.sna.2020.112190
通讯作者Muhammad, Turghun(turghunm@xju.edu.cn)
英文摘要Solid-phase microextraction (SPME) is attracting increasing interest due to being promising, new and green sample-preparation technique. Despite the vast research on the SPME, little is known about adsorption kinetics and thermodynamics of SPME coating, which plays the key role in the extraction. In this paper, a blade type SPME coating was prepared on glass slide, and 2,4-dichlorophenoxyacetic acid (2,4D) adsorption on the coating were monitored by in-situ fiber-optic sensing. The effects of contact time, temperature (298-318 K) and initial concentration (20-150 mg/L) of 2,4-D on the adsorption properties of SPME coating were discussed. The results demonstrated that the pseudo-second-order model was most suitable for describing 2,4-D adsorption on the SPME coating. The thermodynamic parameters (AH, AS, AG) indicate that 2,4-D adsorption at low concentration by the SPME coating is exothermic and spontaneous process. Under the same conditions, the molecularly imprinted polymers (MIPs) coating have significantly higher adsorption capacity, and faster adsorption rate than the non-imprinted polymers (NIPs) SPME coating. This approach provides a tool for in-situ monitoring of adsorption kinetics and thermodynamics of SPME coating which requires fast measurement and small volume. (C) 2020 Elsevier B.V. All rights reserved.
WOS关键词ACTIVATED CARBON ; ISOTHERM ; DERIVATIZATION ; RECOGNITION ; SYSTEM ; MODEL ; 2,4-D
资助项目National Natural Science Foundation of China[21565025]
WOS研究方向Engineering ; Instruments & Instrumentation
语种英语
WOS记录号WOS:000572843000002
资助机构National Natural Science Foundation of China
源URL[http://ir.yic.ac.cn/handle/133337/28486]  
专题烟台海岸带研究所_山东省海岸带环境工程技术研究中心
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Muhammad, Turghun
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
2.Yantai Univ, Sch Chem & Chem Engn, Yantai 264005, Peoples R China
3.Xinjiang Univ, Coll Chem, Inst Appl Chem, Key Lab Energy Mat Chem,Minist Educ,Key Lab Adv F, Urumqi 830046, Xinjiang, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Xiaoxia,Muhammad, Turghun,Yang, Jingjing,et al. In-situ kinetic and thermodynamic study of 2,4-dichlorophenoxyacetic acid adsorption on molecularly imprinted polymer based solid-phase microextraction coatings[J]. SENSORS AND ACTUATORS A-PHYSICAL,2020,313:8.
APA Yang, Xiaoxia,Muhammad, Turghun,Yang, Jingjing,Yasen, Ayzukram,&Chen, Lingxin.(2020).In-situ kinetic and thermodynamic study of 2,4-dichlorophenoxyacetic acid adsorption on molecularly imprinted polymer based solid-phase microextraction coatings.SENSORS AND ACTUATORS A-PHYSICAL,313,8.
MLA Yang, Xiaoxia,et al."In-situ kinetic and thermodynamic study of 2,4-dichlorophenoxyacetic acid adsorption on molecularly imprinted polymer based solid-phase microextraction coatings".SENSORS AND ACTUATORS A-PHYSICAL 313(2020):8.

入库方式： OAI收割

来源：烟台海岸带研究所

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