▎ 摘　　要

NOVELTY - Preparation of antibacterial graphene quantum dot solution comprises adding graphite-containing material to flask containing concentrated nitric acid, sonicating for 1-3 hours to obtain black mixed suspension, oil bath heat-refluxing, slowly cooling to room temperature, and high-speed centrifuging to obtain supernatant and precipitate; and adding precipitate with water, sonicating for 10-30 minutes, adjusting pH to neutral, and filtering through filter paper. USE - Method for preparation of antibacterial graphene quantum dot solution (claimed). ADVANTAGE - The method has wide practicability, simple operation, and continuous mass production.