首页|Spinel CoMn2O4 nano-/micro-spheres embedded RGO nanosheets modified disposable electrode for the highly sensitive electrochemical detection of metol

Spinel CoMn2O4 nano-/micro-spheres embedded RGO nanosheets modified disposable electrode for the highly sensitive electrochemical detection of metol

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  • NSTL
  • Elsevier
This work focussed on the fabrication of synergetic spinel CoMn2O4 embedded reduced graphene oxide (CoMn2O4@RGO) nanocomposite over the surface of modified screen-printed carbon electrode (SPCE) for highly sensitive and enhanced electrochemical detection of metol (MTL) in 0.05 M phosphate buffer elec-trolyte. The CoMn2O4@RGO nanocomposite material was synthesized by sonochemical method and well-characterized using various spectral and analytical (XRD, TGA, Raman spectroscopic, FE-SEM, HR-TEM & EA) techniques. Cyclic and differential pulse voltammetry techniques were used for the detection of MTL at CoMn2O4@RGO modified SPCE. The present electrochemical sensor shows a dynamic linear response range from 0.01 to 137.65 mu M and the detection limit, quantification, sensitivity were estimated to be 0.050 mu M, 1.64 mu M, and 3.77 mu A mu M-1 cm(-2). Furthermore, the proposed MTL sensor was exhibited numer-ous advantages including very ease fabrication, high selectivity, stability, and reproducibility for the detection of MTL. Based on the obtained experimental data a plausible MTL redox mechanism was pro-posed. In addition, the present electrochemical sensor was applied in real sample analysis at the spiked samples (lake water samples + MTL) observed with good recovery results. (C) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

CoMn2O4@RGO nanocompositeScreen-printed carbon electrodePhotographic developing agentMetolLake waterREDUCED GRAPHENE OXIDEMULTIWALLED CARBON NANOTUBESVOLTAMMETRIC DETERMINATIONMAGNETIC-PROPERTIESSENSORPERFORMANCEDEGRADATIONHYDRAZINEKINETICSBEHAVIOR

Venkatesh, Krishnan、Muthukutty, Balamurugan、Chen, Shen-Ming、Karuppasamy, Periyakaruppan、Haidyrah, Ahmed S.、Karuppiah, Chelladurai、Yang, Chun-Chen、Ramaraj, Sayee Kannan

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Thiagarajar Coll

Natl Taipei Univ Technol

Anna Univ

King Abdulaziz City Sci & Technol

Ming Chi Univ Technol

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2022

10.1016/j.jiec.2021.11.005

Journal of industrial and engineering chemistry

Journal of industrial and engineering chemistry

EISCI
ISSN：1226-086X
年,卷(期)：2022.106
  • 12
  • 43