▎ 摘　　要

NOVELTY - Hexagonal metal organic composite material preparation involves mixing 1-4 ml carboxylated graphene in 7-10 ml deionized water with stirring for 4-6 hours to prepare aqueous dispersion. The prepared aqueous dispersion is mixed with 2.5-4 mmol copper nitrate and 10-5 ml ethanol in stainless steel high pressure reactor at 100-120 degrees C for 4-6 hours under ultrasonic dispersion to prepare mixed dispersion. The prepared mixed dispersion is mixed with 1-3 mmol trimesic acid in stainless steel autoclave at 100-120 degrees C for 16-20 hours. USE - Method for preparing hexagonal metal organic composite material (claimed). ADVANTAGE - The method prepares the hexagonal metal organic composite material in a simple, cost-effective and eco-friendly manner under mild reaction conditions. DETAILED DESCRIPTION - Hexagonal metal organic composite material preparation involves mixing 1-4 ml carboxylated graphene in 7-10 ml deionized water with stirring for 4-6 hours to prepare aqueous dispersion. The prepared aqueous dispersion is mixed with 2.5-4 mmol copper nitrate and 10-5 ml ethanol in stainless steel high pressure reactor at 100-120 degrees C for 4-6 hours under ultrasonic dispersion to prepare mixed dispersion. The prepared mixed dispersion is mixed with 1-3 mmol trimesic acid in stainless steel autoclave at 100-120 degrees C for 16-20 hours, where the formed product is filtered and washed with deionized water and absolute ethanol, and then dried in vacuum to obtain the hexagonal metal organic composite material. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic scanning electron microscope photograph of the hexagonal metal organic composite material.