▎ 摘　　要

NOVELTY - Aminoimidazole ionic liquid membrane, comprises ionic liquid AemimLys, polymeric ionic liquid PAevimLys, porous material, or polymeric ionic liquid PAevimLys, porous material, where the ionic liquid AemimLys, the polymeric ionic liquid PAevimLys, and the porous material are uniformly dispersed in the membrane matrix. The porous material is mesoporous alumina, MCM-41 molecular sieve, SBA-15 molecular sieve, NaY zeolite molecular sieve, or graphene oxide. USE - The aminoimidazole ionic liquid membrane is useful in absorption and separation of carbon dioxide in gas (claimed). ADVANTAGE - The aminoimidazole ionic liquid film: has uniform thickness and good surface morphology; and has good application prospect in carbon dioxide adsorption separation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the preparation method of the aminoimidazole ionic liquid membrane.