Understanding the endocrine disruptor and determination of bisphenol A by functional Cu-BTABB-MOF/rGO composite as facile rapid electrochemical sensor: An experimental and DFT investigation

Ponnada, S and Gorle, DB and Kiai, MS and Raju, CV and Faraji, M and Sharma, RK and Nowduri, A (2022) Understanding the endocrine disruptor and determination of bisphenol A by functional Cu-BTABB-MOF/rGO composite as facile rapid electrochemical sensor: An experimental and DFT investigation. In: Analytical Methods, 14 (5). pp. 560-573.

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Abstract

A pioneering CuBTABB-MOF/rGO composite customized electrode is fabricated and utilized as a sensor towards identifying bisphenol A (BPA) in a phosphate buffer solution of pH 7.0. The composite is characterized by FTIR, Raman spectroscopy, XRD, SEM, EDX, HRTEM, and XPS to study its structural and morphological properties. Compared with Cu-BTABB-MOF and Cu-BTABB-MOF@GO, the Cu-BTABB-MOF@rGO modified electrode is more sensitive and selective to BPA due to a strong interaction between them. The developed Cu-BTABB-MOF@rGO modified electrode exhibits good sensitivity (6.95 × 10-5 A mol-1 L-1) for BPA having a wide linear range of 0-100 μmol L-1 with the LOD of 2.08 × 10-5 mol L-1, reproducibility of 4.35%, and relative standard deviation (RSD) and stability of 90% for thirty days. In addition, the developed electrocatalyst remained unoccupied from interfering substances and consequently provided an encouraging platform for swift detection of BPA in real samples such as pond water and packed water bottles. Additionally, we utilized DFT (density functional theory) to model GO and Cu-BTABB-MOF structures for detecting BPA molecules.

Item Type:	Journal Article
Publication:	Analytical Methods
Publisher:	Royal Society of Chemistry
Additional Information:	The copyright for this article belongs to the Royal Society of Chemistry.
Keywords:	Bottles; Density functional theory; Electrocatalysts; Electrochemical sensors; Electrodes; Fourier transform infrared spectroscopy, Bisphenol A; Bisphenols-A; Density-functional-theory; Endocrine-disruptors; FTIR; Modified electrodes; Phosphate buffer solutions; SEM-EDX; Structural and morphological properties; XRD, Phenols, 4,4' isopropylidenediphenol; benzhydryl derivative; endocrine disruptor; graphene oxide; graphite; phenol derivative, electrochemical analysis; procedures; reproducibility, Benzhydryl Compounds; Electrochemical Techniques; Endocrine Disruptors; Graphite; Phenols; Reproducibility of Results
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	27 Jun 2022 05:24
Last Modified:	27 Jun 2022 05:24
URI:	https://eprints.iisc.ac.in/id/eprint/73871

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