Hu, Yiting1; Muhammad, Turghun1; Wu, Beibei1; Wei, Aixia1; Yang, Xiaoxia1; Chen, Lingxin2,3
发表期刊JOURNAL OF CHROMATOGRAPHY A
ISSN0021-9673
2020-07-05
卷号1622页码:9
关键词Fiber-optic sensingOn-line monitoringFixed bed adsorption2,4-dichlorophenoxyacetic acidMolecularly imprinted polymersWastewater treatment
DOI10.1016/j.chroma.2020.461112
通讯作者Muhammad, Turghun(turghunm@xju.edu.cn)
英文摘要Fixed bed adsorption is widely used for separations and purifications of active components in medicine, and for wastewater treatment. At present, fixed bed adsorption breakthrough curve is generally obtained by manual sampling and off-line detection. In this study, we proposed a method for on-line monitoring of fixed bed adsorption process using a self-assembled fiber-optic sensing (FOS) system. The adsorption of 2,4-dichlorophenoxyacetic acid (2,4-D) on the fixed bed packed with molecularly imprinted polymers (MIPs) and non-imprinted polymers (NIPs) were studied. The reproducibility and precision of the system was investigated. The relative standard deviation (RSD) of the system was less than 1.54%, which indicates that the system has a good reproducibility. The effects of initial concentration, flow rate, adsorbent mass and particle size on the breakthrough curves were investigated. Through screening, it was found that adsorption kinetics of the polymer materials fit to Thomas and Yoon-Nelson models. The MIPs showed high binding capacity, good selectivity, fast adsorption rate, indicating a great potential for the treatment of 2,4-D contaminated water. Moreover, this study has identified that the detection method has the advantages of being on-line, real-time, simple, and accurate. The on-line method can facilitate the study of fixed bed adsorption processes and accelerate the understanding of adsorption kinetics. (C) 2020 Elsevier B.V. All rights reserved.
资助机构National Natural Science Foundation of China; State Key Laboratory of Chemo/Biosensing and Chemometrics; Department of Science and Technology of Shandong Province of China; Taishan Scholar Project Special Funding
收录类别SCI
语种英语
关键词[WOS]2,4-DICHLOROPHENOXYACETIC ACID; AQUEOUS-SOLUTION; 2,4-D HERBICIDE; REMOVAL; WATER; COLUMN; DEGRADATION; OXIDATION; ADSORBENT; KINETICS
研究领域[WOS]Biochemistry & Molecular Biology; Chemistry
WOS记录号WOS:000536132400015
引用统计被引频次：2[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/133337/29065
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 & Chem Engn, Xinjiang Key Lab Oil & Gas Fine Chem, Urumqi 830046, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China
3.Yantai Univ, Sch Chem & Chem Engn, Yantai 264005, Peoples R China
推荐引用方式
GB/T 7714Hu, Yiting,Muhammad, Turghun,Wu, Beibei,et al. A simple on-line detection system based on fiber-optic sensing for the realtime monitoring of fixed bed adsorption processes of molecularly imprinted polymers[J]. JOURNAL OF CHROMATOGRAPHY A,2020,1622:9.
APAHu, Yiting,Muhammad, Turghun,Wu, Beibei,Wei, Aixia,Yang, Xiaoxia,&Chen, Lingxin.(2020).A simple on-line detection system based on fiber-optic sensing for the realtime monitoring of fixed bed adsorption processes of molecularly imprinted polymers.JOURNAL OF CHROMATOGRAPHY A,1622,9.
MLAHu, Yiting,et al."A simple on-line detection system based on fiber-optic sensing for the realtime monitoring of fixed bed adsorption processes of molecularly imprinted polymers".JOURNAL OF CHROMATOGRAPHY A 1622(2020):9.
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