The subject of the invention is a sorbent based on metal-organic frameworks (MOFs) for CO2 sorption. The invention relates to new materials for separating CO2 from the gas phase in the form of powder or granules composed of MOFs (metal-organic frameworks), modified with various types of ionic liquids (ILs) in order to increase the sorption capacity with respect to CO₂, and at the same time to obtain a material that can be easily used in sorption columns. The invention also covers a method for obtaining this sorbent.
The invention can be used in gas purification technologies, CO₂ emission reduction and industrial carbon dioxide capture and storage installations. Therefore, the aim of the research was to create a new type of MOF composite sorbents modified with ionic liquids, characterised by increased CO₂ selective sorption capacity and structural and thermal stability.