Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 261, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2021.124247
Keywords
Bisphenol A; Multi-walled carbon nanotubes; Copper ferrite; Sensor; Nanocomposite
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Funding
- post-graduate office of Hakim Sabzevari University
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In this study, a novel electrochemical sensor based on MWCNTs/CuFe2O4 nanocomposite modified GCE was introduced for detecting BPA. The sensor showed a low detection limit and good selectivity and reproducibility for BPA determination in different real samples.
In the present study, a novel electrochemical sensor based on glassy carbon electrode (GCE) modified by multiwalled carbon nanotubes/copper ferrite (MWCNTs/CuFe2O4) nanocomposite was introduced for detection of bisphenol A (BPA). The nanocomposite was prepared by citrate sol-gel method and then characterized using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and energy-dispersive X-ray (EDX) systems. Electrochemical characterizations of the bare and modified electrodes were explored with cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) methods. Also, the peak current of differential pulse voltammetry (DPV) of BPA was increased linearly with its concentration in the ranges of 0.01-120 mu M with a low detection limit of 3.2 nM (S/N = 3). Good selectivity and acceptable reproducibility were also attained on the proposed sensor. Finally, this sensor was successfully employed for the BPA determination in different real samples.
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