Amperometric Sensing of Hydrogen Peroxide Using Graphene Oxide-Alizarin Modified Glassy Carbon Electrode

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MUHAMMET S. M.

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE, cilt.17, sa.6, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 17 Sayı: 6
  • Basım Tarihi: 2022
  • Doi Numarası: 10.20964/2022.06.12
  • Dergi Adı: INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, Metadex, Civil Engineering Abstracts
  • Anahtar Kelimeler: Hydrogen peroxide, Alizarin, Graphene oxide, Glassy carbon electrode, ELECTROCHEMICAL DETERMINATION, BIOSENSOR, IMMOBILIZATION, FILM, NANOPARTICLES, CHOLESTEROL, NANOTUBES, URICASE
  • Gazi Üniversitesi Adresli: Evet

Özet

A sensitive and selective amperometric sensor for hydrogen peroxide was constructed by mixing graphene oxide (GO) and alizarin red (Ali) at certain amounts, and dropping it onto a glassy carbon electrode (GC). The freshly prepared electrode (Ali-GO/GC) was activated by voltage scans at the range of -0.6 V and 0.9 V for ten cycles. Activated Ali-GO/GC has possessed a reversible redox activity in both anodic and cathodic directions. Ali-GO/GC exhibits a suitable electrocatalytic activity against hydrogen peroxide towards the anodic redox region with a linear range from 3.6 mu M to 513 mu M of H2O2 and a detection limit of 1.1 mu M. Ali-GO/GC displays selectivity, relatively high sensitivity, and reproducibility at the amperometric analysis of hydrogen peroxide.