화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.106, 287-296, February, 2022
DOI10.1016/j.jiec.2021.11.005  Export Citation
Spinel CoMn2O4 nano-/micro-spheres embedded RGO nanosheets modified disposable electrode for the highly sensitive electrochemical detection of metol
Krishnan Venkatesh1, Balamurugan Muthukutty2, Shen-Ming Chen2, †, Periyakaruppan Karuppasamy3, Ahmed S. Haidyrah4, Chelladurai Karuppiah5, Chun-Chen Yang5, 6, †, and Sayee Kannan Ramaraj1, †
  • 1Post Graduate and Research Department of Chemistry, Thiagarajar College, Madurai, Tamil Nadu, India
  • 2Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
  • 3Department of Chemistry, Anna University Regional Campus-Tirunelveli, Tirunelveli 627 007, Tamil Nadu, India
  • 4Nuclear and Radiological Control Unit,, King Abdulaziz City for Science and Technology, Riyadh 11442, Saudi Arabia
  • 5Battery Research Centre of Green Energy, Ming Chi University of Technology, New Taipei City 24301, Taiwan, ROC
  • 6Department of Chemical Engineering, Ming Chi University of Technology, New Taipei City 243, Taiwan, ROC
E-mail:, ,
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 electrolyte. The CoMn2O4@RGO nanocomposite material was synthesized by sonochemical method and wellcharacterized 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 mM and the detection limit, quantification, sensitivity were estimated to be 0.050 μM, 1.64 μM, and 3.77 μA μM-1 cm-2. Furthermore, the proposed MTL sensor was exhibited numerous 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 proposed. 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.
Keywords:CoMn2O4@RGO nanocomposite;Screen-printed carbon electrode;Photographic developing agent;Metol;Lake water
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