Selective determination of arsenic (III) using a Nafion/alpha-MnO2@polydopamine modified electrode | |
Jiang, Tianjia1,2; Qi, Longbin1,2,7; Lu, Xue4; Hou, Chao6; Qin, Wei1,2,3,5 | |
发表期刊 | JOURNAL OF ELECTROANALYTICAL CHEMISTRY |
ISSN | 1572-6657 |
2020-12-01 | |
卷号 | 878页码:8 |
关键词 | alpha-MnO2@PDA Arsenic (III) Anti-interference Stripping analysis Modified electrode |
DOI | 10.1016/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 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.yic.ac.cn/handle/133337/27547 |
专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室 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 | 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 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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