Polyvinylpyrrolidone-assisted synthesis of highly water-stable cadmium-based metal–organic framework nanosheets for the detection of metronidazole
Guoxu Qin, Duojun Cao, Xinjun Wan, Xinyun Wang, Yaqiong Kong
Abstract
However, the preparation of high-quality 2D MOF nanosheets in good yields still remains a huge challenge. Herein, we report 2D cadmium-based metal-organic framework (Cd-MOF) nanosheets prepared in a one-pot polyvinylpyrrolidone (PVP)-assisted synthesis method with high yield. The Cd-MOF nanosheets were characterized with good stability and dispersion in aqueous systems, and were highly selective and sensitive to the antibiotic metronidazole (MNZ) with low limit of detection (LOD: 0.10 μM), thus providing a new and promising fluorescent sensor for rapid detection of MNZ in aqueous solution.
Topics & Concepts
PolyvinylpyrrolidoneCadmiumMetronidazoleMetal-organic frameworkMetalChemistryChemical engineeringNuclear chemistryMaterials sciencePolymer chemistryOrganic chemistryAdsorptionEngineeringAntibioticsBiochemistryMetal-Organic Frameworks: Synthesis and ApplicationsLuminescence and Fluorescent MaterialsMolecular Sensors and Ion Detection