▎ 摘　　要

NOVELTY - Preparation of cobalt loaded aza-graphene oxide/mesoporous thin-layer carbon nitride composite photocatalytic material includes weighing melamine, putting into a ceramic crucible with nickel net, putting into a muffle furnace, calcining, pouring the product into hydrochloric acid water solution to remove the residual metal nickel, and drying to obtain mesoporous thin-layer carbon nitride; weighing the graphene oxide into a beaker, adding ultra-pure water, ultrasonically processing until completely dispersed, adding cobalt chloride (CoCl2) solution, ultrasonically processing, and freeze drying; putting the freeze-dried sample into a tubular furnace, and calcining at high temperature in argon gas and ammonia gas atmosphere to obtain cobalt-doped graphene oxide; and weighing aza-graphene oxide loaded with cobalt, adding absolute ethyl alcohol, and ultrasonically dispersing uniformly. USE - The method is for preparation of cobalt loaded aza-graphene oxide/mesoporous thin-layer carbon nitride composite photocatalytic material (claimed) used for photocatalytic decomposition of water to produce hydrogen. ADVANTAGE - The method is suitable to various metal materials and simple and convenient, and provides photocatalytic material, which can improve the surface interface electronic transmission efficiency and improves the photocatalytic decomposition of water to produce hydrogen. DETAILED DESCRIPTION - Preparation of cobalt loaded aza-graphene oxide/mesoporous thin-layer carbon nitride composite photocatalytic material comprises weighing melamine, putting into a ceramic crucible with nickel net, putting into a muffle furnace, calcining at 550 degrees C, pouring the product into hydrochloric acid water solution to remove the residual metal nickel, and drying to obtain mesoporous thin-layer carbon nitride; weighing the graphene oxide into a beaker, adding ultra-pure water, ultrasonically processing until completely dispersed, adding cobalt chloride (CoCl2) solution, ultrasonically processing, and freeze drying; putting the freeze-dried sample into a tubular furnace, and calcining at high temperature in argon gas and ammonia gas atmosphere to obtain cobalt-doped graphene oxide; weighing aza-graphene oxide loaded with cobalt, adding absolute ethyl alcohol, ultrasonically dispersing uniformly, weighing mesoporous thin-layer carbon nitride and adding, ultrasonically processing, continuously stirring, centrifuging, and vacuum drying at 60 degrees C; and grinding the dried sample into powder, transferring to a ceramic square boat, and annealing under argon gas condition. An INDEPENDENT CLAIM is included for cobalt loaded aza-graphene oxide/mesoporous thin-layer carbon nitride composite photocatalytic material.