▎ 摘　　要

NOVELTY - A copper ferrite-graphene nanometer composite is prepared by placing graphite oxide into ethanol to disperse by ultrasound to obtain graphene oxide solution, mixing copper salt with ferric salt, agitating and dissolving in the ethanol, mixing the graphene oxide solution with solution of copper salt, ferric salt and ethanol, agitating and adjusting pH, transferring the mixed solution into a hydrothermal kettle for reaction, centrifuging, separating, washing and drying the product obtain the copper ferrite-graphene nanometer composite. USE - Preparation of copper ferrite-graphene nanometer composite used in wastewater treatment and lithium ion batteries. ADVANTAGE - The method prepares copper ferrite-graphene nanometer composite with good application prospect and economic benefit. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the preparation of the copper ferrite-graphene nanometer composite. (Drawing includes non-English language text).