▎ 摘　　要

NOVELTY - Preparing graphene purification air composite material, comprises (i) activating wood activated carbon powder with water vapor, and mixing with alkali to obtain activated carbon semi-finished product, then preparing 0.6 wt.% aqueous graphene dispersion, and (ii) mixing uniformly the activated carbon semi-finished product with calcium carbonate whisker, nitrogen source and graphene solution, and carrying out reduction reaction to obtain final product. USE - The method is useful for preparing graphene purification air composite material. ADVANTAGE - The material: has effect of absorbing harmful gas and peculiar smell, sterilizing effect and low production cost; and is antibacterial and environmentally friendly.