▎ 摘　　要

NOVELTY - Preparing graphite-like phase carbon nitride/graphene/graphene oxide composite aerogel involves grinding urea or melamine or a mixture of urea and melamine in any ratio into powder, heating up from room temperature to 530-570degrees Celsius at a heating rate of 8-10degrees Celsius/minute and maintaining at 530-570degrees Celsius for 3-4 hours to obtain graphite-like phase carbon nitride. The graphite-like carbon nitride phase is mixed with distilled water. The mixed liquid is ultrasonically oscillated for 4-6 hours to obtain an aqueous dispersion of the graphite-like phase carbon nitride nanosheet aqueous dispersion. USE - Method for preparing graphite-like phase carbon nitride/graphene/graphene oxide composite aerogel. ADVANTAGE - The graphite-like carbon nitride/graphene/graphene oxide composite aerogel improves the degradation efficiency and degradation rate of the photocatalytic material in the degradation of organic dyes. DETAILED DESCRIPTION - Preparing graphite-like phase carbon nitride/graphene/graphene oxide composite aerogel involves grinding urea or melamine or a mixture of urea and melamine in any ratio into powder, heating up from room temperature to 530-570degrees Celsius at a heating rate of 8-10degrees Celsius/minute and maintaining at 530-570degrees Celsius for 3-4 hours to obtain graphite-like phase carbon nitride. The graphite-like carbon nitride phase is mixed with distilled water. The mixed liquid is ultrasonically oscillated for 4-6 hours to obtain an aqueous dispersion of the graphite-like phase carbon nitride nanosheet aqueous dispersion. The dispersion is mixed with the graphene oxide aqueous solution and the vitamin C aqueous solution, stirred for 0.5-1 hour to make it fully mixed uniformly. The mixed liquid is heated at 45-55degrees Celsius in an oven for 0.5-2.0 hours to obtain a precursor sol. The precursor sol is centrifuged at a high speed at a speed of 4000-4200 rotations/minute, and the supernatant liquid is removed to obtain a wet gel. The wet gel is freeze dried to obtain a graphite-like phase carbon nitride/graphene/graphene oxide composite aerogel. An INDEPENDENT CLAIM is included for a graphite-like phase carbon nitride/graphene/graphene oxide composite aerogel.