Jiang, Tianjia1,2
; Qi, Longbin1,2,7; Lu, Xue4; Hou, Chao6; Qin, Wei1,2,3,5发表期刊JOURNAL OF ELECTROANALYTICAL CHEMISTRY
ISSN1572-6657
2020-12-01
卷号878页码:8
关键词alpha-MnO2@PDAArsenic (III)Anti-interferenceStripping analysisModified 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.
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
收录类别SCI
语种英语
关键词[WOS]ANODIC-STRIPPING VOLTAMMETRY; ELECTROCHEMICAL DETECTION; CARBON NANOTUBES; AU NANOPARTICLES; WEST-BENGAL; WATER; INTERFERENCE; AS(III); CONTAMINATION; ADSORPTION
研究领域[WOS]Chemistry; Electrochemistry
WOS记录号WOS:000593969800019
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/133337/27547
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
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, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
2.Chinese Acad Sci, Shandong Key Lab Coastal Environm Proc, Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China
3.Pilot Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao 266237, Shandong, Peoples R China
4.Nanjing Forestry Univ, Coll Sci, Nanjing 210037, Jiangsu, Peoples R China
5.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China
6.Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714Jiang, 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.
APAJiang, 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.
MLAJiang, 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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