▎ 摘　　要

NOVELTY - Boron-adsorbed graphene nanomaterial has a nanosheet morphology, where the boron element is adsorbed into the graphene lattice without changing the graphene crystal form, and the graphene is rendered magnetic by adsorbing the boron element. USE - As boron-adsorbed graphene nanomaterial. ADVANTAGE - The boron-adsorbed graphene nanomaterial has no agglomeration and improved magnetic properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the boron-adsorbed graphene nanomaterial, comprising ultrasonically dispersing the graphene and boron in water, introducing the dispersion liquid into a reaction device for steam thermal reaction, and post-processing to obtain the product.