Overoxidized Polypyrrole/Sodium Dodecyl Sulfate/Single Wall Carbon Nanotubes Matrix for the Simultaneous Electrochemical Determination of Heavy Metal Ions by Adsorptive Stripping Voltammetry
{"title":"Overoxidized Polypyrrole/Sodium Dodecyl Sulfate/Single Wall Carbon Nanotubes Matrix for the Simultaneous Electrochemical Determination of Heavy Metal Ions by Adsorptive Stripping Voltammetry","authors":"Sarra Slimi, H. Barhoumi, N. Jaffrezic‐Renault","doi":"10.1166/sl.2020.4292","DOIUrl":null,"url":null,"abstract":"In this work, we report an overoxidized polypyrrole (oPPy)/single-wall carbon nanotubes (SWCNTs) matrix, electrochemically coated onto a glassy carbon electrode (GCE). This matrix was characterized by AFM, FTIR, and cyclic voltammetry. It is shown that the developed permslective matrix\n allows the simultaneous quantification of multiple metal ions, including zinc, cadmium, and lead, using square wave anodic stripping voltammetry. The sensitivities of the oPPy/SWCNTs/GCE for Zn2+, Cd2+, and Pb2+ are respectively, 8.89, 41.3, and 45.4 μA\n mol L~1. The detection limits of Cd2+ and Pb2+ were found to be respectively equal to 37 μg/L and 69 μg/L In addition, the developed oPPy/SWCNTs based sensor has been successfully used for the detection of lead and cadmium in wastewater\n samples.","PeriodicalId":21781,"journal":{"name":"Sensor Letters","volume":"34 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sensor Letters","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1166/sl.2020.4292","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
In this work, we report an overoxidized polypyrrole (oPPy)/single-wall carbon nanotubes (SWCNTs) matrix, electrochemically coated onto a glassy carbon electrode (GCE). This matrix was characterized by AFM, FTIR, and cyclic voltammetry. It is shown that the developed permslective matrix
allows the simultaneous quantification of multiple metal ions, including zinc, cadmium, and lead, using square wave anodic stripping voltammetry. The sensitivities of the oPPy/SWCNTs/GCE for Zn2+, Cd2+, and Pb2+ are respectively, 8.89, 41.3, and 45.4 μA
mol L~1. The detection limits of Cd2+ and Pb2+ were found to be respectively equal to 37 μg/L and 69 μg/L In addition, the developed oPPy/SWCNTs based sensor has been successfully used for the detection of lead and cadmium in wastewater
samples.
期刊介绍：
The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
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