▎ 摘　　要

NOVELTY - Reduced graphene oxide/polydopamine/silver (rGO/PDA/Ag) composite airgel antibacterial agent prepared by using graphene oxide from graphite powder as carbon source as substrate, polydopamine as crosslinking agent, and silver nanoparticles as antibacterial agent, and reduced graphene oxide/silver hydrogel is prepared by hydrothermal reaction of silver nitrate and graphene oxide dispersion in presence of a reducing agent, modifying and crosslinking reduced graphene oxide/silver hydrogel with polydopamine to obtain reduced graphene oxide/polydopamine/silver composite airgel antibacterial agent. USE - The reduced graphene oxide/polydopamine/silver composite airgel antibacterial agent is useful in preparing composite antibacterial material (claimed). ADVANTAGE - The airgel antibacterial agent can quickly stop bleeding, has excellent antibacterial, promoting healing ability, and maintain excellent mechanical property.