▎ 摘　　要

NOVELTY - Preparation of yellow phosphor powder of graphene quantum dot involves adding 0.1-0.3 g amiloride to 10-30 ml ethanol solution, adding 1-3 ml acetic acid to ethanol solution, stirring ethanol solution for 10 minutes to form mixed solution, transferring mixed solution into 25-50 ml PTFE high pressure reactor, and reacting at 180-230 degrees C for 12 hours to obtain product containing graphene quantum dots solution; cooling product solution containing graphene quantum dots, taking out product solution from PTFE autoclave, and filtering through filter. USE - Method for preparing yellow phosphor powder of graphene quantum dot used in next-generation LED white lighting applications. ADVANTAGE - The method is environmentally friendly. It has low-cost. DETAILED DESCRIPTION - Preparation of yellow phosphor powder of graphene quantum dot comprises adding 0.1-0.3 g amiloride to 10-30 ml ethanol solution, adding 1-3 ml acetic acid to ethanol solution, stirring ethanol solution for 10 minutes to form mixed solution, transferring mixed solution into 25-50 ml PTFE high pressure reactor, and reacting at 180-230 degrees C for 12 hours to obtain product containing graphene quantum dots solution; cooling product solution containing graphene quantum dots, taking out product solution from PTFE autoclave, filtering through filter having pore size of 220 nm, transferring to dialysis bag, and subjecting to dialysate rotary evaporation.