A Facile Fluorescent Visualization Method Based on Copper Clusters for Formaldehyde Detection
Year: 2025
Type: article
Abstract: Establishing a simple and effective method for the visual detection of formaldehyde plays an important role in environmental emergency monitoring. In this work, L-cysteine-stabilized copper clusters were synthesized via a green, mild, and facile one-step preparation method. Through the optimization of reaction conditions, including reactant concentration and pH, the clusters exhibited stable red fluorescence. Upon exposure to formaldehyde, the fluorescence intensity of copper clusters gradually quenched with increasing formaldehyde concentration, enabling the development of a visual detection method that was successfully applied to analyze formaldehyde samples in air. Furthermore, by immobilizing the copper clusters into hydrogels, the visual detection performance and portability of the material were significantly enhanced. This method offers the advantages of simple preparation and rapid and accurate determination, demonstrating potential for semi-quantitative field detection of formaldehyde in emergency scenarios.
Source: Molecules
Authors: Jie Zou, Qing Chen, Guimin Mu, Miao Ma, Fang Yang, Mengtian Li, Fujian Xu, Hui Xia
Institution: Southwest Minzu University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,258
Awards: G3553620652, G4448439554
OpenAlex ID: W4414936624