▎ 摘　　要

NOVELTY - Graphene grafted activated carbon purification filter core prepared by vapor deposition method, is claimed. The filter core comprises 90-99 wt.% activated carbon, 0.1-9.8 wt.% graphene, 0.1-1 wt.% surfactant and 0.1-5 wt.% additive. USE - The filter core is useful in water purifier to protect people health. ADVANTAGE - The filter core has excellent over sterilizing and descaling functions. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphene grafted activated carbon purification filter core comprising (i) modifying the activated carbon, (ii) placing modified activated carbon material obtained in step (i) in a vapor deposition apparatus, and warming in a mixture of argon and hydrogen, (iii) keep the temperature and gas flow constant, annealing, then passing acetylene gas, then turn off the acetylene source, when the temperature of the hydrogen-argon mixed gas is lowered, depositing the graphene on the surface and pores of the activated carbon to obtain graphene modified activated carbon composite material, and (iv) using the graphene-modified activated carbon composite material obtained in the step (iii) to produce modified graphene compressed activated carbon water purification filter core.