Fabrication of a Reusable Carbon Dot/Gold Nanoparticle/Metal–Organic Framework Film for Fluorescence Detection of Lead Ions in Water

• DOI: 10.1021/acsami.2c09122
• Publication Date: 2022-07-29T18:03:37Z
• Authors: Joseph F. Olorunyomi; Jacinta F. White; Thomas R. Gengenbach; Rachel A. Caruso; Cara M. Doherty
• Keywords: Carbon fibers; Tap water

Solid-state sensing platforms are desirable for the development of reusable sensors to promote public health measures such as testing drinking water contamination. A bioinspired metal-organic framework (MOF)-based material has been developed by imitating metal-protein interactions in biological systems attain high sensitivity and selectivity Pb2+ through fluorescence sensing. zirconium terephthalate-type (also known NH2-UiO-66) was modified with both gold nanoparticles thiol-functionalized carbon dots give HS-C/Au(x)/UiO-66 composites different Au content (x) were subsequently adapted into films that show extraordinary Pb2+. The HS-C/Au(1.4)/UiO-66 film consists 1.4 wt % shows a quenching response limit detection 80 parts per trillion sustained performance five cycles. Moreover, can be reversed from emission enrichment increasing content. solid-state sensor demonstrates its potential application devices ensure safety contamination water.