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    • Short-time synthesis of highly exfoliated rGO nanosheets as anti-fouling catalyst for the electrochemical detection of phenols

      AMIRA BENSANA FETHI ACHI SABAH MENAA

      Volume 46 Published: 4 March 2023 Article ID 0047

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/046/0047

    • Keywords

       

      rGO nanosheets; electrochemical detection; anti-fouling; phenol; sensors.

    • Abstract

       

      This work presents a fast and efficient approach to prepare an anti-fouling and highly electrocatalyst rGO material based on the oxidation-assisted sonication method. By modifying the Hummer’s method, the proposed approach uses non-harmful reducing agents, minimizes the synthesis time and optimize the design of rGO structure. The synthesized rGO sheets were characterized with Fourier transformation spectroscopy, X-ray diffraction and cyclic voltammetry. The rGO sheets-based nanocomposite can greatly eliminate the fouling effect of the glassy carbon electrode surface and enhances remarkably the analytical performance of the phenol sensors. Under optimal conditions, using chronoamperometry in 0.1 M phosphate buffer solution (pH=7) at the potential of 0.68 V, the new sensor based-rGO sheets display a wide linear range of phenol concentration (2–68 ${\mu}$M), with low detection limit and exhibit high sensitivity of1,0157 ${\mu}$A ${\mu}$M$^{–1}$ cm$^{–2}$.

    • Author Affiliations

       

      AMIRA BENSANA1 FETHI ACHI2 SABAH MENAA2 3

      1. Laboratory of Chemical Process Engineering (LGPC), Ferhat Abbas University, 19000 Setif, Algeria
      2. Laboratory of Valorization and Promotion of Saharian Ressources, Kasdi Merbah University, 30000 Ouargla, Algeria
      3. Center for Scientific and Technical Research in Physic-Chemical Analysis (CRAPC), 42000 Bou Ismaı¨l, Algeria

    • Dates

       
      Published
      4 March 2023
      Manuscript received
      22 September 2022
      Accepted
      4 November 2022
      Final version published online
      4 March 2023

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