A modified carbon paste electrode with N-rGO/CuO nanocomposite and ionic liquid for the efficient and cheap voltammetric sensing of hydroquinone in water specimens

Peyman Mohammadzadeh Jahani; Fariba Garkani Nejad; Zahra Dourandish; Mostafa Poursoltani Zarandi; Mohammad Mahdi Safizadeh; Somayeh Tajik; Hadi Beitollahi

doi:10.1016/j.chemosphere.2022.134712

A modified carbon paste electrode with N-rGO/CuO nanocomposite and ionic liquid for the efficient and cheap voltammetric sensing of hydroquinone in water specimens

Chemosphere. 2022 Sep:302:134712. doi: 10.1016/j.chemosphere.2022.134712. Epub 2022 Apr 26.

Authors

Peyman Mohammadzadeh Jahani¹, Fariba Garkani Nejad², Zahra Dourandish², Mostafa Poursoltani Zarandi², Mohammad Mahdi Safizadeh³, Somayeh Tajik⁴, Hadi Beitollahi⁵

Affiliations

¹ School of Medicine, Bam University of Medical Sciences, Bam, Iran.
² Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran.
³ Student Research Committee, Bam University of Medical Sciences, Bam, Iran.
⁴ Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran. Electronic address: [email protected].
⁵ Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran. Electronic address: [email protected].

PMID: 35487364
DOI: 10.1016/j.chemosphere.2022.134712

Abstract

This paper reports a voltammetric sensor based on copper oxide nanoparticles on nitrogen-doped reduced graphene oxide nanocomposite (N-rGO/CuO)-ionic liquid modified carbon paste electrode (N-rGO/CuO-ILCPE) for determining the hydroquinone (HQ). The N-rGO/CuO was prepared by a facile protocol, followed by characterization via fourier transform-infrared (FT-IR) patterns, field emission-scanning electron microscopy (FE-SEM), energy dispersive X-ray (EDX), and X-ray diffraction (XRD) analysis. The electrochemical behaviour was linearly symmetrical to various hydroquinone levels (1.0-600.0 μM) with a narrow limit of detection (LOD = 0.25 μM). The diffusion coefficient was also estimated to be 4.1 × 10^-6 cm²/s. The N-rGO/CuO-ILCPE was impressively applicable in determination of hydroquinone in the real specimens.

Keywords: Electrochemical sensor; Hydroquinone; Modified electrode; N-rGO/CuO nanocomposite.

MeSH terms

Carbon / chemistry
Copper
Electrochemical Techniques / methods
Electrodes
Graphite
Hydroquinones
Ionic Liquids*
Nanocomposites* / chemistry
Spectroscopy, Fourier Transform Infrared
Water

Substances

Hydroquinones
Ionic Liquids
graphene oxide
Water
Carbon
Graphite
Copper
cupric oxide