A composite material for CO2 capture and separation and preparation method thereof

Abstract

The present invention provides a composite material for CO2 capture and separation and a preparation method thereof. The preparation method comprises the following steps: S1: dissolving an ethyleneamine compound and an amide polycyclic heterocyclic compound in anhydrous ethanol respectively, and removing the solvent after mixing the two solutions obtained by dissolution to obtain a polyamino ethyleneamine ionic liquid; S2: dispersing the ionic liquid obtained in S1 into methanol to obtain an ionic liquid methanol solution; S3: adding zeolite imidazole skeleton material powder to the ionic liquid methanol solution obtained in S2, stirring and impregnating, and then removing the solvent. The composite material for CO2 capture and separation is prepared by the preparation method. In view of the current status of CO2 capture and separation, polyamino functionalized ionic liquid and zeolite imidazole skeleton material are composited. This process is environmentally friendly, has high yield, and fast production speed. The obtained composite material can achieve efficient capture and separation of CO2 and CO2 in its gas mixture.

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