▎ 摘　　要

NOVELTY - Preparing carbon dioxide capture material, comprises (i) mixing suspension of graphene oxide with alkali and performing hydrothermal reaction to obtain alkaline graphene hydrogel, (ii) pre-freezing the alkaline graphene hydrogel, and performing vacuum freeze-drying treatment to obtain an alkaline aerogel, (iii) immersing the alkaline aerogel in a mixed solution of styrene and glycidyl methacrylate and reacting under vacuum conditions to obtain an alkaline aerogel loaded with epoxy groups, and (iv) dropping ethylenediamine to the surface of the alkaline aerogel loaded with epoxy groups to make it completely wet, and reacting to obtain the carbon dioxide capture material. USE - The carbon dioxide capture material is useful in the treatment of greenhouse gases (claimed). ADVANTAGE - The carbon dioxide capture material has better carbon dioxide adsorption effect under normal temperature and normal pressure conditions, and improves the recycling performance of graphene.