Silver ferrite embellished graphene oxide heterogenous nanocomposite for efficient electrochemical detection of gallic acid

Murugan, E ; Sri, M Kaviya ; Janakiraman, K ; Saranya, S ; Lyric, F ; Sahoo, N Sathyabarata


Ferrites have attracted the research community owing to their invincible properties corresponding to their magnetic recoverability, recycling efficacy, and environmentally friendly behaviour. They are gaining importance in catalysis, sensors, supercapacitors, batteries, magnetic tunnel ferrofluids, magnetic drug delivery, and information storage. By taking advantage of ferrites, in this study, we have developed a silver ferrite embellished graphene oxide (AgFe2O4/GO) nanocomposite by decorating AgFe2O4 on graphene oxide (GO) by a viable route. The crystal structure, size, morphology, and magnetic behaviour of the fabricated nanocomposites have been investigated with the assistance of fourier transform infrared (FTIR) spectroscopy, RAMAN spectroscopy, X-ray diffraction, and scanning electron microscopic (SEM) techniques. The composite has been examined for the electrocatalytic determination of gallic acid (GA) by cyclic voltammetry and differential pulse voltammetry by its modification of glassy carbon electrode. This modified glassy carbon electrode has shown excellent electrocatalytic behaviour toward the detection of GA. These results can be used as an electrochemical standard in the estimation of total polyphenol content in the foodstuffs and extended to pharmaceutical and industrial applications.


Cyclic voltammetry; Differential pulse voltammetry; Gallic acid; Polyphenol; Sensors; Silver ferrites

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