Manipulating time-dependent size distribution of sulfur quantum dots and their fluorescence sensing for ascorbic acid
Zitong Wei, Wenyi Lu, Caiwen Pan, Jiping Ni, Haiyun Zhao, Guoyong Huang, Chunxia Wang
Abstract
the etching-aggregation process. Morevoer, the fluorescence of SQDs-72 can be effectively quenched by CoOOH nanosheets and recovered upon addition of ascorbic acid (AA) by consuming CoOOH nanosheets through the redox reaction, leading to fluorescence recovery. Therefore, a fluorescence "off-on" nanosensor for the detection of AA with a limit of detection (LOD) of 0.85 μM was constructed.
Topics & Concepts
Ascorbic acidPhotoluminescenceSodium hydroxideSulfurFluorescenceQuantum yieldMaterials scienceSolventReagentNanoparticleQuantum dotHydroxideInorganic chemistryPhotochemistryChemistryNanotechnologyOrganic chemistryPhysicsOptoelectronicsFood scienceQuantum mechanicsCarbon and Quantum Dots ApplicationsPerovskite Materials and ApplicationsQuantum Dots Synthesis And Properties