FIELD: chemistry.
SUBSTANCE: invention relates to gas purification. The adsorbent has a carrier in form of an organometallic frame structure of the MOF-5 type in whose lattice points there are clusters in form of inorganic oxometallate polyhedrons containing zinc, copper or cobalt ions, linkers in form of residues of benzene polycarboxylic or biphenyl carboxylic acid, and oligomers encapsulated in pores of the support, where said oligomers contain polyethylene amines -CH2-CH(NH2)n of the PEPA type, where n=5-10.
EFFECT: efficient material with high CO2 adsorption capacity.
3 ex
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