▎ 摘　　要

NOVELTY - A mixed solution of carboxyl graphene quantum dot includes 10-20 pts. wt. dispersant, 10-20 pts. wt. adsorbent, 0.1-1 pt. wt. carboxyl graphene quantum dot solution, and 10-20 pts. wt. deionized water. USE - Mixed solution of carboxyl graphene quantum dot. ADVANTAGE - The adsorbent can absorb volatile organic compounds to material surface, and the dispersant can prevent the carboxyl graphene component in the mixed solution and improve mixing uniformity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the mixed solution of carboxyl graphene quantum dot, which involves: (a) preparing a beaker and preparing equal portion of dispersant, adsorbent, carboxyl graphene quantum dot solution and deionized water; (b) stirring the components in the beaker using stirrer and keeping the stirring temperature at 25degrees Celsius for 2 hours to obtain a mixed solution; (c) preparing high-pressure reactor and debugging the high-pressure reactor, injecting the mixed solution into the high-pressure reactor, opening the reactor, raising the temperature to 40-60degrees Celsius, and keeping the reaction for 1-2 days; and (d) cooling the mixed solution in the reactor, and placing the mixed solution at room temperature for cooling until cooling to room temperature.