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

T S Sunil Kumar Naik; Simranjeet Singh; Pavithra N; Radhika Varshney; Basavaraju Uppara; Joginder Singh; Nadeem A Khan; Lakhveer Singh; Muhammad Zulqarnain Arshad; Praveen C Ramamurthy

doi:10.1016/j.chemosphere.2022.137104

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

Chemosphere. 2023 Jan;311(Pt 2):137104. doi: 10.1016/j.chemosphere.2022.137104. Epub 2022 Nov 5.

Affiliations

¹ Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, India.
² Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India.
³ Department of Microbiology, Lovely Professional University, Jalandhar, Punjab, 144111, India.
⁴ Department of Civil Engineering , Mewat Engineering College, Nuh, Haryana, 122107, India.
⁵ Department of Chemistry, Sardar Patel University, Mandi, Himachal Pradesh, 175001, India.
⁶ School of Business Management, College of Business, Universiti Utara Malaysia, Kedah, Malaysia.
⁷ Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, India; Interdisciplinary Centre for Water Research (ICWaR), Indian Institute of Science, Bangalore, 560012, India. Electronic address: onegroupb203@gmail.com.

PMID: 36347345
DOI: 10.1016/j.chemosphere.2022.137104

Abstract

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.

Keywords: Advance experimental techniques; And voltammetry; Bisphenol A; Electrochemical sensors; Groundwater; Metal-organic frameworks; Modified electrodes; UiO-66-NDC/GO.