Preparation method of novel ultra-microporous porous coordination polymer for CO2 adsorption and capture

The invention provides a preparation method of a novel ultra-microporous porous coordination polymer for adsorbing and capturing CO2, which comprises the following steps: fully dissolving racemic-alpha, beta-bis (4-pyridine) ethylene glycol in an organic ligand, 2-hydroxyterephthalic acid and cobalt nitrate hexahydrate in an organic solvent; transferring a mixed solution obtained by dissolving into a closed reaction container, and heating at 60-80 DEG C for 24-48 hours to obtain a homogeneous crystal material; filtering the homogeneous crystal material, washing unreacted impurities with methanol, and then placing the homogeneous crystal material in methanol for solvent exchange treatment so as to remove solvent molecules in pore channels of the material; and placing the obtained material in a vacuum condition at the temperature of 100-150 DEG C, and performing activation treatment for 24-48 hours to obtain the ultra-microporous porous coordination polymer material. The obtained material is high in adsorption