RARE-EARTH-ELEMENT-DOPED CARBON QUANTUM DOT RATIO FLUORESCENT PROBE, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

• Main Authors: LI, Weina, SANG, Yuxin, WANG, Juan, NIU, Yongsheng
• Format: Patent
• Language: Chinese; English; French
• Published: 20.04.2023
• Subjects: ADHESIVES; CHEMISTRY; DYES; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASURING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PHYSICS; POLISHES; TESTING

The present invention belongs to the technical field of fluorescent nano-materials and environment monitoring, and disclosed are a rare-earth-element-doped carbon quantum dot ratio fluorescent probe, a preparation method therefor and an application thereof. The rare-earth-element-doped carbon quantum dot ratio fluorescent probe is obtained by using citric acid as a carbon source and melamine as a nitrogen source, adding a passivator formaldehyde and rare earth compound Eu(NO3)3·6H2O, uniformly mixing same in ultrapure water, carrying out a high-temperature reaction, then dialyzing same to remove small molecules, and drying. In the present invention, the rare-earth-element-doped carbon quantum dot ratio fluorescent probe is prepared by means of a one-step hydrothermal method. Europium ions are doped into carbon quantum dots in a hydrothermal reaction, the fluorescence of the carbon quantum dots may be maintained, and the carbon quantum dots may be specifically combined with tetracycline molecules. The describe