The application of polymer containing materials in CO₂capturing via absorption and adsorption methods

The ascending concentration of atmospheric carbon dioxide resulting from fossil fuel combustions causes global climate change and a significant environmental problems in our lives. The increased forthcoming requisite for fossil fuel consumption followed by the resulting subsequent increase in global CO2 level reveals the need for carbon dioxide capture and storage (CCS) from large scale sources more and more. Therefore, the efforts continued to reduce the excessive human based CO2 emissions to the atmosphere by using the current carbon capturing methods such as pre- and post-combustion. In the past decade, we have seen an increase in the use of physical and chemical polymeric sorbents besides the different traditional non-polymeric types for CO2 capturing from diluted gaseous namely air. This comprehensive review evaluates the recent developments and concepts in CO2 capturing by using absorbents and adsorbents containing polymeric materials. We put absorbent materials into three main groups including (I) polymeric solvents, (II) polyionic liquids (PILs) and (III) nano- absorbents. The non-modified and modified polymeric adsorbents along with nano adsorbents are categorized in adsorption section. The future directions and prospects of polymer-based CO2 capture and separation are also presented.