Repository of Research and Investigative Information

Repository of Research and Investigative Information

Kurdistan University of Medical Sciences

The development of a new electrochemical sensor based on Cu2O@C core–shell and polyalizarin/nafion polymers for determination of bisphenol A at two area potentials

(2021) The development of a new electrochemical sensor based on Cu2O@C core–shell and polyalizarin/nafion polymers for determination of bisphenol A at two area potentials. Surfaces and Interfaces.

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Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....

Abstract

In this paper, employing a hydrothermal method, we synthesized Cu2O nanoparticles and Cu2O@C core–shell. The scanning electron microscope (SEM), X -Ray diffraction (XRD), dynamic light scattering (DLS) and zeta potential techniques were used for characterized of the Cu2O nanoparticles and Cu2O@C core–shell. The zeta potential values were obtained to be -11.16 mV and -0.88 mV for Cu2O and Cu2O@C, respectively. The average hydrodynamic size of diameter for Cu2O and Cu2O@C was obtained as 48-62 nm and 200-250 nm by DLS method. Polyalizarin yellowe R (PAYR) and Nafion (Nf) conductive polymers with Cu2O@C core–shell immobilizing on glassy carbon electrode (PAYR/Cu2O@C /Nf/GCE), they were applyed for fabrication of an original electrochemical sensor to detect and determine bisphenol A. Cyclic voltammetry (CV) and impedimetric techniques were employed to confirm the proposed sensor construction. Furthermore, the electrocatalytic-based oxidation behavior which electrode showed was studyed by cyclic voltammetry and differential puls voltammetry (DPV) methods. The results showed that, PAYR/Cu2O@C/Nf composite has a great electrocatalytic features for detecting and determining bisphenol A at 0.12V(OX1) and 0.63V(OX2). For OX1 peak, linear range (1 – 1400 µM), limit of detection (260 nM) and sensitivity (0.0009 µA/µM) were obtained. Moreover, considering the peak of OX2, linear range (1 – 1400 µM), limit of detection (240 nM) and sensitivity (0.0009 µA/µM) were calculated. PAYR/Cu2O@C/Nf/GCE presented considerable advantages for instance high sensitivity, used for real samples, simple preparation, low detection of limit, and specially the oxidation of bisphenol A at two applied potentials that it reported for the first time.

Item Type: Article
Keywords: Bisphenol A; Cu2O@C core-shell; Polyalizarin, Electrooxidation, Sensor
Subjects: WA Public Health > WA 670-847 Environmental Pollution. Sanitation
Divisions: Research Vice-Chancellor Department > Environmental Health Research Center
Journal or Publication Title: Surfaces and Interfaces
Journal Index: ISI
Volume: 23
Publisher: Elsevier B.V.
Identification Number: 10.1016/j.surfin.2020.100917
ISSN: 24680230
Depositing User: مسعود رسول آبادی
URI: http://eprints.muk.ac.ir/id/eprint/4215

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