▎ 摘　　要

NOVELTY - Graphene nanoparticle composite airgel microsphere comprises 100 pts. wt. deionized water, 0.05-1.5 pts. wt. graphite oxide and 0.1-5 pts. wt. metal or inorganic nanoparticles. USE - Graphene nanoparticle composite airgel microsphere. ADVANTAGE - The graphene nanoparticle composite airgel microsphere has simple preparation and high efficiency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene nanoparticle composite airgel microsphere comprising taking graphite, performing chemical oxidation, particularly Hummer oxidation, Staudenmaier oxidation or Brodie oxidation, dispersing in ionized water and nanoparticles, performing ultrasonic irradiation for 60-180 minutes at 1600 W, spraying graphene oxide nanoparticles with atomized aqueous dispersion, placing under cooling bath, performing lyophilization, and performing thermal reduction or chemical reduction.