▎ 摘　　要

NOVELTY - Preparing white light graphene quantum dot phosphors involves mixing melamine, p-phenylenediamine and solvent uniformly to form a reaction liquid. The reaction solution is heated for hydrothermal reaction, cooled to room temperature, and finally filtered and dried to obtain white light graphene quantum dot phosphor. USE - Method for preparing white light graphene quantum dot phosphors is used in the field of lighting (Claimed). ADVANTAGE - The method emits bright white fluorescence under the excitation of ultraviolet light, and after the excitation of ultraviolet light is stopped, it can emit white phosphorescence and delayed fluorescence that can be distinguished by the naked eye, and the photoluminescence performance is stable.