Silver bismuth sulphide (AgBiS<inf>2</inf>)-MXene composite as high-performance electrochemical sensing platform for sensitive detection of pollutant 4-nitrophenol
Issued Date
2024-09-10
Resource Type
ISSN
00134686
Scopus ID
2-s2.0-85197090800
Journal Title
Electrochimica Acta
Volume
498
Rights Holder(s)
SCOPUS
Bibliographic Citation
Electrochimica Acta Vol.498 (2024)
Suggested Citation
Gopi P.K., Sanjayan C.G., Akhil S., Hunsur Ravikumar C., Thitamadee S., Kongpatanakul S., Balakrishna R.G., Surareungchai W. Silver bismuth sulphide (AgBiS<inf>2</inf>)-MXene composite as high-performance electrochemical sensing platform for sensitive detection of pollutant 4-nitrophenol. Electrochimica Acta Vol.498 (2024). doi:10.1016/j.electacta.2024.144616 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/99372
Title
Silver bismuth sulphide (AgBiS<inf>2</inf>)-MXene composite as high-performance electrochemical sensing platform for sensitive detection of pollutant 4-nitrophenol
Corresponding Author(s)
Other Contributor(s)
Abstract
4-Nitrophenol (4-NP) is one of the most common and extensive toxic threats to the environment; hence there is always a need to develop a robust analytical method. In this study, we present MXene-based AgBiS2 nanocomposite as an electrochemical sensing platform for detecting 4-NP. The synergistic combination of MXene and AgBiS2 within the composite structure enhances electrocatalytic performance, resulting in a highly sensitive and selective sensor. The electrochemical performance of the MXene-AgBiS2 modified GCE was evaluated through cyclic voltammetry (CV) and differential pulse voltammetry (DPV) analyses. The sensor exhibited excellent electrochemical properties, including a low detection limit (LOD) of 0.00254 µM (should consider the method how to get such low LOD – due to 10 times of the lowest conc tested S/N = 3, high sensitivity of 5.862 µA µM−1 cm−2, and a wide linear range (0.02–1869 µM). The sensor also demonstrated good selectivity against various interference compounds such as Di-Nitrophenol, Ortho-Nitrophenol, Copper, Cobalt, sodium, Manganese, Zinc, Glucose (GLU), Urea (Ur), Dopamine (DA), Ascorbic acid, and Uric Acid. Along with reproducibility, repeatability, and stability also performed shows, 2.21 %, and 2.71 % respectively. Our nanocomposite sensor, utilizing MXene-based AgBiS2, proves its practicality in real-time tap water analysis. This bridge between lab studies and environmental monitoring marks a significant advancement. The unique properties of our sensor enhance electrochemical sensing, providing a promising solution for swift on-site detection of 4-NP in water, potentially revolutionizing pollutant management.