Detection of fluoride ions using carbon quantum dots derived from coal washery rejects <i>via</i> an on–off–on fluorescence mechanism: a smartphone-based image-processing and machine learning approach
Anusuya Boruah, Akhil Rajbonshi, Kallol Roy, Binoy K. Saikia
Abstract
An on–off–on fluorescence process-based fluoride ion sensor is developed by using highly fluorescent carbon quantum dots (CQDs) derived from coal washery rejects/waste coal (CWRs) and demonstrated through smartphone.
Topics & Concepts
ChemistryQuantum dotFluorescenceIonCarbon quantum dotsFluorideCoalMechanism (biology)NanotechnologyCarbon fibersComposite numberInorganic chemistryOrganic chemistryAlgorithmOpticsQuantum mechanicsComputer sciencePhysicsMaterials scienceCarbon and Quantum Dots ApplicationsAdvanced Nanomaterials in CatalysisAdvanced biosensing and bioanalysis techniques