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

作　　者：Khouloud Abid Daniela Iannazzo Consuelo Celesti Amani Khaskhoussi Antonino Foti Ramzi Maalej Pietro Giuseppe Gucciardi Giovanni Neri 

机构地区：[1]Department of Engineering,University of Messina,C.da Di Dio,I-98166 Messina,Italy [2]INSTM,Research Unity of Messina,Italy [3]Laboratory of Dielectric and Photonic Materials,Faculty of Sciences of Sfax,Sfax,University,Sfax 3018,Tunisia [4]CNR IPCF Istituto per i Processi Chimico-Fisici,viale F.Stagno D’Alcontres 37,I-98156 Messina,Italy

出　　处：《Journal of Environmental Sciences》2024年第2期226-236,共11页环境科学学报（英文版）

基　　金：supported by the European Union (Next Generation EU)through the MUR-PNRR project SAMOTHRACE (No.ECS00000022)。

摘　　要：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/WS2nanohybrid 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:WS_(2))ratio.Electrochemical characterization demonstrated that the 2D-WS2/GO nanohybrids having a GO:WS_(2)ratio=2:1 shows the highest electrocatalytic activity towards oxidation of Thiram.The developed sensor permits the quantification of Thiram in the linear range 0.083-0.33μM with a limit of detection(LOD)of 0.02μM,which is below the legal limits for this fungicide in drinking water or foods.

关 键 词：WS_(2)nanosheets Graphene Oxide(GO) Electrochemical sensor Fungicides THIRAM 

分 类 号：X830[环境科学与工程—环境工程] TP212[自动化与计算机技术—检测技术与自动化装置]