A novel 2D-GO@WS2 electrochemical platform for the determination of thiram fungicide

In this paper, the determination of Thiram fungicide by a novel modified screen-printed carbon electrode (SPCE) fabricated modifying the working electrode (WE) with 2D-GO/WS2 nanohybrid composites, is reported. Scanning electron microscopy (SEM), Raman spectroscopy, and fluorescence analysis (PL) we...

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Published inJournal of environmental sciences (China) Vol. 136; pp. 226 - 236
Main Authors Abid, Khouloud, Iannazzo, Daniela, Celesti, Consuelo, Khaskhoussi, Amani, Foti, Antonino, Maalej, Ramzi, Gucciardi, Pietro Giuseppe, Neri, Giovanni
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.2024
Subjects
Electrochemical sensor
Fungicides
Graphene Oxide (GO)
Thiram
WS2 nanosheets
Graphene Oxide (GO)
WS2 nanosheets
Thiram
Fungicides
Electrochemical sensor
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Summary:In this paper, the determination of Thiram fungicide by a novel modified screen-printed carbon electrode (SPCE) fabricated modifying the working electrode (WE) with 2D-GO/WS2 nanohybrid composites, is reported. Scanning electron microscopy (SEM), Raman spectroscopy, and fluorescence analysis (PL) were used to reveal the morphological and microstructural characteristics of the 2D-GO/WS2 nanohybrids with different graphene oxide:tungsten disulphide (GO:WS2) ratio. Electrochemical characterization demonstrated that the 2D-WS2/GO nanohybrids having a GO:WS2 ratio = 2:1 shows the highest electrocatalytic activity towards oxidation of Thiram. The developed sensor permits the quantification of Thiram in the linear range 0.083-0.33 µmol/L with a limit of detection (LOD) of 0.02 µmol/L, which is below the legal limits for this fungicide in drinking water or foods.
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ISSN:1001-0742
1878-7320
DOI:10.1016/j.jes.2022.11.018