▎ 摘　　要

NOVELTY - Method for preparing nanomaterials, involves (i) pouring ferrite into a first capacity of ethanol and mixing and stirring to obtain an ethanol solution containing ferrite, (ii) pouring graphene into a second capacity of ethanol and mixing and stirring to obtain an ethanol solution containing graphene, (iii) adding the ethanol solution containing graphene to the ethanol solution containing ferrite through a separatory funnel, ultrasonically stirring and performing vacuum filtration to obtain solid substance, which comprises ferrite, graphene and ethanol, and (iv) placing the solid substance in a vacuum oven and drying to obtain the target containing ferrite and graphene. USE - Method for preparing nanomaterials. ADVANTAGE - The method provides the nanomaterials with stable structure.