▎ 摘　　要

NOVELTY - Preparation of reduced graphene oxide involves mixing graphene oxide, organic solvent, and methyl imidazolium tetrafluoroborate salt ionic liquid to obtain graphene oxide dispersion liquid, using graphene oxide dispersion as electrolyte solution, using conductive material as working electrode, using three-electrode system, and using constant potential method of surface electro-deposition of working electrode. USE - Preparation of reduced graphene oxide for electrochemical applications, high-salt antibiotics, and treatment of refractory biodegradable wastewater. ADVANTAGE - The method is simple, produces uniform reduced graphene oxide, uniform reduction degree, controllable reduction degree, and excellent reusability.