▎ 摘　　要

NOVELTY - Preparation of antibacterial 3-dimensional graphene adsorbent comprises purifying large particles activated carbon matrix with mixed acid of sulfuric acid, hydrochloric acid and peracetic acid, performing carboxylation treatment with nitric acid, and drying to obtain activated carbon having carboxyl groups on inner wall; adding nanosilver-carrying antibacterial agent and aminated graphene oxide in water to form composite slurry; coating composite slurry on activated carbon having carboxyl group, applying vacuum to adsorb slurry to activated carbon hole and react amino group of graphene oxide with carboxyl group of activated carbon to form modified activated carbon; dissolving polymethyl methacrylate in methyl methacrylate to obtain viscous solution, immersing with the modified activated carbon, pressurizing and drying; and calcining and introducing reducing gas. USE - Preparation of antibacterial 3-dimensional graphene adsorbent for air purification (claimed). ADVANTAGE - The method is simple and provides adsorbent with good absorbing effect and excellent antibacterial performance.