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Advanced experimental techniques for the sensitive detection of a toxic bisphenol A using UiO-66-NDC/GO-based electrochemical sensor

Sunil Kumar Naik, TS and Singh, S and N, P and Varshney, R and Uppara, B and Singh, J and Khan, NA and Singh, L and Zulqarnain Arshad, M and C Ramamurthy, P (2023) Advanced experimental techniques for the sensitive detection of a toxic bisphenol A using UiO-66-NDC/GO-based electrochemical sensor. In: Chemosphere, 311 .

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Official URL: https://doi.org/10.1016/j.chemosphere.2022.137104


In the present study, a simple and sensitive method for detecting bisphenol A (BPA) in various environments, including groundwater, was described using a widespread electrochemical method. BPA is well-known for its endocrine-disrupting properties, which may cause potential toxicological effects oon the nervous, reproductive, and immune systems. A novel metal-organic framework (UiO-66-NDC/GO) was synthesized, and its existence was confirmed by several characterization techniques like FTIR, UV–visible, XRD, SEM-EDX, Raman spectroscopy, and TGA. Due to the excellent electrocatalytic nature, UiO-66-NDC/GO was chosen as the sensor material and integrated on the surface of the bare carbon paste electrode (BCPE). The UiO-66-NDC/GO modified carbon paste electrode (MCPE) was engaged for the detection of BPA using techniques like cyclic Voltammetry (CV), differential pulse voltammetry (DPV), and electrochemical impedance spectroscopy (EIS). The applied sensor exhibited an astonishing outcome for BPA detection with high sensitivity and selectivity. The lower detection limit (LLOD) of 0.025 μM was achieved at the modified sensor with a linear concentration range of 10–70 μM. Moreover, the practical applicability of the sensor was tested on tap water, drinking water, and fresh liquid milk, giving an excellent recovery of BPA in the range of 94.8–99.3 (v.%). The proposed method could be employed for electrochemical device or a solid state device fabrication for the onsite monitoring of BPA.

Item Type: Journal Article
Publication: Chemosphere
Publisher: Elsevier Ltd
Additional Information: The copyright for this article belongs to Elsevier Ltd.
Keywords: Carbon; Cyclic voltammetry; Electrochemical electrodes; Electrochemical impedance spectroscopy; Endocrine disrupters; Fourier transform infrared spectroscopy; Organometallics; Phenols; Potable water; Solid electrolytes, Advance experimental technique; And voltammetry; Bisphenol A; Bisphenols-A; Experimental techniques; Metalorganic frameworks (MOFs); Modified electrodes; Sensitive detection; SIMPLE method; UiO-66-NDC/GO, Electrochemical sensors, 4,4' isopropylidenediphenol; drinking water; graphene oxide; ground water; metal organic framework; tap water, detection method; electrochemical method; electrode; experimental study; groundwater; organometallic compound; sensor; toxic substance, Article; catalysis; controlled study; cyclic voltammetry; differential pulse voltammetry; electrochemical analysis; energy dispersive X ray spectroscopy; Fourier transform infrared spectroscopy; impedance spectroscopy; limit of detection; liquid; milk; Raman spectrometry; scanning electron microscopy; surface property; synthesis; ultraviolet visible spectroscopy; X ray diffraction
Department/Centre: Division of Interdisciplinary Sciences > Interdisciplinary Centre for Water Research
Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 29 Dec 2022 10:32
Last Modified: 29 Dec 2022 10:32
URI: https://eprints.iisc.ac.in/id/eprint/78612

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