A modified carbon paste electrode with N-rGO/CuO nanocomposite and ionic liquid for the efficient and cheap
Peyman Mohammadzadeh Jahani1, Fariba Garkani Nejad2, Zahra Dourandish2
1School of Medicine, Bam University of Medical Sciences, Bam, Iran.
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.
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