▎ 摘　　要

NOVELTY - An air purification material is provided with a three-dimensional mesh hierarchical pore structure, which is mainly formed by overlapping graphene sheets and comprises a large hole, a middle hole and a small hole, which are distributed randomly. The graphene sheets are loaded with metal ions or metal oxides. The large hole has a pore volume of 0.05-1.05 cm3/g and a pore size of larger than 1000 nm. The middle hole has a pore volume of 0.10-1.20 cm3/g and a pore size of 100-1000 nm. The small hole has a pore volume of 0.10-1.40 cm3/g and a pore size of less than 100 nm. USE - Air purification material. ADVANTAGE - The air purification material has large specific surface area, uniform pore size distribution, excellent flow resistance, deodorization effect, and particle interception (PM1.0) effect, and high purification efficiency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the air purification material.