Yang, Xiaoxia1; Muhammad, Turghun1; Yang, Jingjing1; Yasen, Ayzukram1; Chen, Lingxin2,3
发表期刊SENSORS AND ACTUATORS A-PHYSICAL
ISSN0924-4247
2020-10-01
卷号313页码:8
关键词Adsorption kineticsAdsorption thermodynamics2,4-Dichlorophenoxyacetic acidMolecularly imprinted polymerSPME coatingFiber-optic sensing
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.
资助机构National Natural Science Foundation of China
收录类别SCI
语种英语
关键词[WOS]ACTIVATED CARBON; ISOTHERM; DERIVATIZATION; RECOGNITION; SYSTEM; MODEL; 2,4-D
研究领域[WOS]Engineering; Instruments & Instrumentation
WOS记录号WOS:000572843000002
引用统计被引频次：7[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/28487
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
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.Xinjiang Univ, Coll Chem, Inst Appl Chem, Key Lab Energy Mat Chem,Minist Educ,Key Lab Adv F, Urumqi 830046, Xinjiang, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
3.Yantai Univ, Sch Chem & Chem Engn, Yantai 264005, Peoples R China
推荐引用方式
GB/T 7714Yang, 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.
APAYang, 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.
MLAYang, 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.
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