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Selective determination of arsenic (III) using a Nafion/alpha-MnO2@polydopamine modified electrode

文献类型：期刊论文

作者Jiang, Tianjia4,5; Qi, Longbin2,4,5; Lu, Xue7; Hou, Chao3; Qin, Wei1,4,5,6
刊名JOURNAL OF ELECTROANALYTICAL CHEMISTRY
出版日期2020-12-01
卷号878页码:8
ISSN号1572-6657
关键词alpha-MnO2@PDA Arsenic (III) Anti-interference Stripping analysis Modified electrode
DOI10.1016/j.jelechem.2020.114562
通讯作者Qin, Wei(wqin@yic.ac.cn)
英文摘要A simple strategy for reliable determination of As(III) without strongly acidic media is described by using the gold disk electrode modified with the water-dispersible polydopamine-coated alpha-MnO2 (alpha-MnO2@PDA) composites and the Nafion layers. The composites have been synthesized by the in-situ polymerization of dopamine and used to improve the sensitivity for detection of As(III). In this case, the alpha-MnO2 microrods are used as inorganic matrixes with strong adsorption abilities towards As(III) and the permeable PDA layers are prepared to enhance such adsorption effects by plenty of amino and hydroxyl groups that could work as the active adsorption sites. Nafion has been employed based on its excellent film-forming ability, by which the alpha-MnO2@PDA modified layer can be tightly attached to the sensor surface. Such a designed electrode shows a remarkably improved analysis performance to As(III). The electrode has a linear range of 10-150 mu g L-1 with a sensitivity of 0.13 mu A mu g(-1) L. Moreover, the proposed sensor exhibits a favorable stability and reproducibility in the determination of As(III). Additionally, interferences from co-existing ions can be effectively diminished. Therefore, we believe that the combination of alpha-MnO2@PDA composite and Nafion could be used to develop electrochemical sensors for the sensitive and selective analysis of As(III). (c) 2020 Elsevier B.V. All rights reserved.
WOS关键词ANODIC-STRIPPING VOLTAMMETRY ; ELECTROCHEMICAL DETECTION ; CARBON NANOTUBES ; AU NANOPARTICLES ; WEST-BENGAL ; WATER ; INTERFERENCE ; AS(III) ; CONTAMINATION ; ADSORPTION
资助项目Natural Science Foundation of Shandong Province[ZR2018BB053] ; National Natural Science Foundation of China[41806119] ; National Natural Science Foundation of China[21677172] ; Science and Technology Project of Yantai City[2020MSGY051] ; National Key Research and Development Program of China[2016YFC1400700] ; Taishan Scholar Program of Shandong Province[tspd20181215]
WOS研究方向Chemistry ; Electrochemistry
语种英语
WOS记录号WOS:000593969800019
资助机构Natural Science Foundation of Shandong Province ; National Natural Science Foundation of China ; Science and Technology Project of Yantai City ; National Key Research and Development Program of China ; Taishan Scholar Program of Shandong Province
源URL[http://ir.yic.ac.cn/handle/133337/27546]  
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_中科院海岸带环境过程与生态修复重点实验室
通讯作者Qin, Wei
作者单位1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China
4.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
5.Chinese Acad Sci, Shandong Key Lab Coastal Environm Proc, Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
6.Pilot Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China
7.Nanjing Forestry Univ, Coll Sci, Nanjing 210037, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, Tianjia,Qi, Longbin,Lu, Xue,et al. Selective determination of arsenic (III) using a Nafion/alpha-MnO2@polydopamine modified electrode[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2020,878:8.
APA Jiang, Tianjia,Qi, Longbin,Lu, Xue,Hou, Chao,&Qin, Wei.(2020).Selective determination of arsenic (III) using a Nafion/alpha-MnO2@polydopamine modified electrode.JOURNAL OF ELECTROANALYTICAL CHEMISTRY,878,8.
MLA Jiang, Tianjia,et al."Selective determination of arsenic (III) using a Nafion/alpha-MnO2@polydopamine modified electrode".JOURNAL OF ELECTROANALYTICAL CHEMISTRY 878(2020):8.

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来源：烟台海岸带研究所

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