▎ 摘　　要

NOVELTY - Graphite absorption material is claimed. The preparation of graphite absorption material comprises cross-linking grafting of EDC and NHS on the surface of graphene oxide, adding gallic acid, and hydrating the hydrazine. USE - Used as graphite absorption material. ADVANTAGE - The material enhances surface ion adsorption activity, has good adsorption for heavy metal ions and organic reagent residues. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing graphite absorption material comprising (i) taking graphene oxide powder, adding water, stirring and dispersing, and stirring to process ultrasonic treatment to obtain aqueous graphene solution, (ii), adding EDC and NHS to the treated aqueous graphene solution, stirring, reacting for 1-2 hours, adding gallic acid, and continuing the reaction for 12-72 hours, and (iii) filtering material liquid obtained in step (ii), filtering and washing by de-ionized water, adding hydrazine hydrate, reacting at 70-85 degrees C for 10-40 minutes, vacuum concentrating, and washing by de-ionized water.