Preparation of gold nanoparticles via anodic stripping of copper underpotential deposition in bulk gold electrodeposition for high-performance electrochemical sensing of bisphenol aShow others and affiliations
2023 (English)In: Molecules, ISSN 1431-5157, E-ISSN 1420-3049, Vol. 28, no 24, article id 8036
Article in journal (Refereed) Published
Abstract [en]
Bisphenol A is one of the most widely used industrial compounds. Over the years, it has raised severe concern as a potential hazard to the human endocrine system and the environment. Developing robust and easy-to-use sensors for bisphenol A is important in various areas, such as controlling and monitoring water purification and sewage water systems, food safety monitoring, etc. Here, we report an electrochemical method to fabricate a bisphenol A (BPA) sensor based on a modified Au nanoparticles/multiwalled carbon nanotubes composite electrocatalyst electrode (AuCu-UPD/MWCNTs/GCE). Firstly, the Au-Cu alloy was prepared via a convenient and controllable Cu underpotential/bulk Au co-electrodeposition on a multiwalled modified carbon nanotubes glassy carbon electrode (GCE). Then, the AuCu-UPD/MWCNTs/GCE was obtained via the electrochemical anodic stripping of Cu underpotential deposition (UPD). Our novel prepared sensor enables the high-electrocatalytic and high-performance sensing of BPA. Under optimal conditions, the modified electrode showed a two-segment linear response from 0.01 to 1 µM and 1 to 20 µM with a limit of detection (LOD) of 2.43 nM based on differential pulse voltammetry (DPV). Determination of BPA in real water samples using AuCu-UPD/MWCNTs/GCE yielded satisfactory results. The proposed electrochemical sensor is promising for the development of a simple, low-cost water quality monitoring system for the detection of BPA in ambient water samples.
Place, publisher, year, edition, pages
MDPI, 2023. Vol. 28, no 24, article id 8036
Keywords [en]
Au nanoparticles, bisphenol A, carbon nanotube, electrochemical detection, underpotential deposition
National Category
Analytical Chemistry
Identifiers
URN: urn:nbn:se:umu:diva-219060DOI: 10.3390/molecules28248036ISI: 001131018600001PubMedID: 38138526Scopus ID: 2-s2.0-85180674263OAI: oai:DiVA.org:umu-219060DiVA, id: diva2:1826268
2024-01-112024-01-112024-01-11Bibliographically approved