Preparation method of cerium-enhanced red fluorescent carbon quantum dot by taking bran as carbon source

• Main Authors: LI HUIZHI, XU JUN, ZHAO WEILIN, WANG CONGLING
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2019
• Subjects: ADHESIVES; CHEMISTRY; DYES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NANOTECHNOLOGY; NATURAL RESINS; PAINTS; PERFORMING OPERATIONS; POLISHES; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING

The invention discloses a preparation method of a cerium-enhanced red fluorescent carbon quantum dot by taking bran as a carbon source. The preparation method is characterized in that firstly, a cerium nitrate solution is prepared; then the bran and ammonium chloride are taken as reaction raw materials, DMF is taken as a reaction solvent, the bran, the ammonium chloride, the DMF and the cerium nitrate solution are fully mixed uniformly at the normal temperature and then transferred into a reaction kettle containing a polytetrafluoroethylene inner container, the reaction kettle is put in a drying oven, a hydrothermal reaction is carried out for 10 hours at 180+/-5 DEG C, the solution after the reaction is subjected to centrifugation, filtration and dialysis, and the cerium-enhanced red fluorescent carbon quantum dot is obtained. The preparation method of the cerium-enhanced red fluorescent carbon quantum dot by taking the bran as the carbon source has the advantages that the natural rawmaterial bran is adopted