A reliable electrochemical sensor for detection of catechol and hydroquinone at MgO/GO modified carbon paste electrode

Chetankumar, K and Swamy, BEK and Naik, TSSK (2020) A reliable electrochemical sensor for detection of catechol and hydroquinone at MgO/GO modified carbon paste electrode. In: Journal of Materials Science: Materials in Electronics . (In Press)

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Abstract

Herein, report a reliable, potent and more sensitive electrochemical sensor for the selective investigation of hydroquinone (HQ) and catechol (CC) at magnesium oxide and graphene oxide modified carbon paste electrode (MgO/GO/MCPE). The prepared MgO nanoparticle was confirmed by X-ray diffraction (XRD) and scanning electron microscopy with energy dispersive X-ray (SEM�EDX). The constructed electrode provides high current reaction with low detection limit for CC (0.45 µM) and HQ (0.37 µM). The effect of pH, sweep rate, concentration was carried electrochemically. The fabricated MgO/GO/MCPE depicts electrode process was adsorption controlled and gave fine electrocatalytic activity towards simultaneous electrochemical analysis of CC and HQ. The MgO/GO/MCPE exhibits excellent stability with fine selectivity and sensitivity. The analytical testing of modified electrode has been analysed in tap water sample as real sample with acceptable recovery. © 2020, Springer Science+Business Media, LLC, part of Springer Nature.

Item Type:	Journal Article
Publication:	Journal of Materials Science: Materials in Electronics
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer
Keywords:	Chemical detection; Electrochemical electrodes; Graphene; Magnesia; Oxide minerals; Phenols; Scanning electron microscopy, Analytical testing; Electrocatalytic activity; Electrochemical analysis; Energy dispersive x-ray; Low detection limit; Modified carbon paste electrode; Modified electrodes; Selectivity and sensitivity, Electrochemical sensors
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	25 Nov 2020 09:03
Last Modified:	25 Nov 2020 09:03
URI:	http://eprints.iisc.ac.in/id/eprint/66859

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