PREPARATION METHOD FOR CARBON QUANTUM DOTS HAVING HIGH QUANTUM YIELD

摘要

A preparation method for carbon quantum dots having a high quantum yield, comprising the following steps: first, mixing a carbon source consisting of citric acid and ascorbic acid and an alkali source consisting of ethylenediamine and o-phenylenediamine and adding the mixture to a solvent to obtain a mixed solution; and then, heating the mixed solution for a preset duration in a microwave to prepare the carbon quantum dots. The preparation method for the carbon quantum dots having the high quantum yield provided by the present invention solves the technical problem in the existing carbon quantum dot preparation process of being complex and time-consuming in preparation method and high in manufacturing costs.