| In-situ kinetic and thermodynamic study of 2,4-dichlorophenoxyacetic acid adsorption on molecularly imprinted polymer based solid-phase microextraction coatings | |
Yang, Xiaoxia1; Muhammad, Turghun1; Yang, Jingjing1; Yasen, Ayzukram1; Chen, Lingxin2,3
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| 发表期刊 | SENSORS AND ACTUATORS A-PHYSICAL
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| ISSN | 0924-4247 |
| 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 |
| DOI | 10.1016/j.sna.2020.112190 |
| 通讯作者 | Muhammad, Turghun([email protected]) |
| 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 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/28487 |
| 专题 | 中国科学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 中国科学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 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. |
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| In-situ kinetic and （1653KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
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