Efficient Xe selective separation from Xe/Kr/N₂ mixtures over a microporous CALF-20 framework.

ABSTRACT: Capture and separation of xenon and krypton by adsorption are particularly important issues at room temperature in both industry and environmental security. Herein, hydrophobic zinc-based frameworks (CALF-20) were synthesized to separate mixtures of Xe, Kr and N₂, and adsorptive properties and stability of as-prepared samples were investigated in detail. CALF-20 with the 1,2,4-triazole and oxalate as the ligand and Zn metal centers showed a surface area of 442 m² g^-1 and average pore size of 6-7 Å, and exhibited excellent stability in a high-temperature acidic solution. The single and binary adsorption datum represented that CALF-20 has a high Xe uptake of 2.45 mmol g^-1 and Xe/Kr selectivity of 13.2, as well as high Xe/N₂ selectivity o

SUBMITTER: Wei Y 

PROVIDER: S-EPMC9214609 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature