▎ 摘　　要

NOVELTY - Producing graphene nano-sheet comprises performing hydrothermal reduction of graphene oxide in an alkaline environment in presence of hydrazine hydrate. USE - The method is useful for producing a graphene nanosheet (claimed) that is useful in rechargeable batteries, energy storage materials, filtration membrane, chemical detector, transparent electrode, fuel cell and super capacitor. ADVANTAGE - The method is capable of producing the graphene nanosheet with improved antibacterial activity, electrical conductivity, thermal conductivity, mechanical strength, transparency, and elasticity.