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Activated Porous Carbon Supported Pd and ZnO Nanocatalysts for Trace Sensing of Carbaryl Pesticide in Water and Food Products

Jemai, Rihem; Djebbi, Mohamed Amine ; Hussain, Navid ORCID iD icon 1; Yang, Bingquan 1; Hirtz, Michael ORCID iD icon 1; Trouillet, Vanessa 2; Ben Rhaiem, Hafsia; Ben Haj Amara, Abdesslem
1 Institut für Nanotechnologie (INT), Karlsruher Institut für Technologie (KIT)
2 Institut für Angewandte Materialien – Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)

Abstract:

Nanomaterials-based sensors are direly needed as a monitoring tool for the credible and accurate determination of pesticides in water and food samples. Herein, electrocatalysts of Pd and ZnO nanoparticles (NPs) supported on a highly porous framework of activated carbons (APC) were prepared for efficient electrochemical detection of carbaryl trace. First, activated potato starch was used as a pyrolysis precursor to obtain APC. The ZnO NPs were then grown on the APC substrate by sol–gel/impregnation methods, followed by in situ reduction of Pd NPs. The as-prepared nanocomposite of Pd/ZnO/APC was morphologically and structurally confirmed by systematic physicochemical analysis. As-fabricated Pd/ZnO/APC nanocomposites were later evaluated for the efficient sensing of carbaryl by modifying a glassy carbon electrode (GCE). Cyclic voltammetry analysis revealed the unique oxidative sensing ability of Pd/ZnO/APC for carbaryl at 0.62 V with a low ΔE (80 mV) as compared to that of bare GCE. Based on the notable sensing ability of Pd/ZnO/APC, a reliable and sensitive electrochemical method was anticipated for the quantitative and qualitative determination of carbaryl. ... mehr


Postprint §
DOI: 10.5445/IR/1000147974
Veröffentlicht am 21.06.2023
Originalveröffentlichung
DOI: 10.1039/D2NJ01844F
Scopus
Zitationen: 4
Web of Science
Zitationen: 3
Dimensions
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Energiespeichersysteme (IAM-ESS)
Institut für Nanotechnologie (INT)
Karlsruhe Nano Micro Facility (KNMF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 1144-0546, 1369-9261
KITopen-ID: 1000147974
HGF-Programm 43.31.02 (POF IV, LK 01) Devices and Applications
Erschienen in New Journal of Chemistry
Verlag Royal Society of Chemistry (RSC)
Band 46
Heft 29
Seiten 13880-13895
Vorab online veröffentlicht am 20.06.2022
Schlagwörter Project-ID: 2021-027-031009, DPN, XPS
Nachgewiesen in Web of Science
Scopus
Dimensions
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