Poly(<i>n</i>-vinylpyrrolidone-<i>co</i>-acrylonitrile-<i>co</i>-methacrylic acid)–graphene quantum dot conjugate: synthesis and characterization for sensing ammonia vapour
Samiran Upadhyaya, Bedanta Gogoi, Neelotpal Sen Sarma
Abstract
We report the biosynthesis of Graphene QDs and their composite with poly(<italic>n</italic>-vinylpyrrolidone-<italic>co</italic>-acrylonitrile-<italic>co</italic>-methacrylic acid) for efficient detection of ammonia with a detection limit of 0.232 ppm using a fabricated portable electronic device.
Topics & Concepts
AcrylonitrileMethacrylic acidGrapheneAmmoniaMaterials scienceConjugateN-VinylpyrrolidoneQuantum dotCharacterization (materials science)CopolymerDetection limitNanotechnologyChemistryOrganic chemistryPolymerChromatographyMathematical analysisComposite materialMathematicsCarbon and Quantum Dots ApplicationsGraphene and Nanomaterials ApplicationsElectrochemical sensors and biosensors