▎ 摘　　要

NOVELTY - Preparation of non-precious-metal-particle-anchored graphene sheet nanocomposite, involves dissolving 1-imidazole-4-carboxylic acid in acetonitrile solution to obtain ligand solution, dissolving a non-precious metal nitrate in absolute ethanol, dripping in ligand solution, hydrothermally reacting at 170-200 degrees C for 24-48 hours, washing, drying to obtain a solid powder of non-precious metal coordinated compound, mixing the obtained compound and urea, cyanamide, or cyanic acid in a mass ratio of 100:1-1:100, placing under protection of nitrogen, calcining, and cooling naturally. USE - Preparation of nanocomposite graphene sheet for use in photocatalysis (all claimed). ADVANTAGE - The method effectively anchors the metal nanoparticles in the graphene sheet structure, forming a higher Schottky barrier to facilitate quick migration of electrons between the interface, to be applicable in photocatalysis. DETAILED DESCRIPTION - Preparation of non-precious-metal-particle-anchored graphene sheet nanocomposite, involves dissolving 1-imidazole-4-carboxylic acid in acetonitrile solution to obtain a homogeneous ligand solution, dissolving a non-precious metal nitrate in absolute ethanol, dripping in ligand solution, fully dissolving nitrate precursor in ligand solution by stirring, sealing the mixed ligand solution in PTFE-lined hydrothermal reactor, hydrothermally reacting at 170-200 degrees C for 24-48 hours, washing, drying to obtain a solid powder of non-precious metal coordinated compound, mixing the obtained compound and urea, cyanamide, or cyanic acid in a mass ratio of 100:1-1:100, placing under protection of nitrogen, calcining at 600-1000 degrees C for 4 hours, and cooling naturally. The non-precious metal is cobalt, nickel, iron, copper or zinc.