▎ 摘　　要

NOVELTY - Preparation of cobalt oxide/graphene composite absorbing material involves dissolving cobalt metal salt, ammonium fluoride and urea in water, placing obtained metal salt aqueous solution in reactor, magnetically stirring, dispersing graphene solid powder to obtain graphite enolate solution, mixing with water, placing the reactor in oven, reacting to obtain muddy purple liquid, centrifuging, washing with ethanol solution, heating, drying, and calcining. USE - Preparation of cobalt oxide/graphene composite absorbing material (claimed). ADVANTAGE - The cobalt oxide/graphene composite absorbing material having improved reproducibility is prepared by efficient, simple and environmentally-friendly method.