▎ 摘　　要

NOVELTY - Preparing air purification composite material involves preparing a graphene/titanium oxide material by a hydrothermal method, preparing silver nanoparticles with negatively charged surface, adding polyetherimide (PEI) to graphene/titanium oxide to obtain a graphene/titanium oxide adsorption polyetherimide composite. The graphene/titanium oxide adsorption polyetherimide composite is used to adsorb silver nanoparticles to obtain graphene/titanium oxide/silver air purification composite material. USE - Method for preparing air purification composite material. ADVANTAGE - The method enables to prepare air purification composite material, which has the effects of antibacterial and decomposing harmful organic substances such as formaldehyde, and has strong applicability and good purification effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an air purification composite material, is graphene/titanium oxide/silver nano composite material. DESCRIPTION OF DRAWING(S) - The drawing shows schematic diagram of the air purification composite material. Carbon atom (1) Titanium oxide nano particle (2) Silver nanoparticles (3)