Sensitive Detection of Sulfide Ion Based on Fluorescent Ionic Liquid-Graphene Quantum Dots Nanocomposite.

ABSTRACT: Sulfide ions (S^2-) that are widely distributed in biological and industrial fields are extremely toxic and pose great harms to both ecological environment and human health. However, fluorescent sensors toward S^2- ions commonly use S^2--recovered fluorescence of fluorophore that is first quenched mainly by metal ions. Fluorescent probe which enables direct, selective, and sensitive detection of S^2- ion is highly desirable. Herein, we demonstrate one-step preparation of fluorescent ionic liquid-graphene quantum dots (IL-GQDs) nanocomposite, which can act as a fluorescent probe for direct and sensitive detection of S^2- ion. The IL-GQDs nanocomposite is easily synthesized via facile molecular fusion of carbon precursor and in situ

SUBMITTER: Qiu G 

PROVIDER: S-EPMC8120006 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature