Polymeric composite membranes in carbon dioxide capture process: a review

Carbon dioxide (CO2) emission to the atmosphere is the prime cause of certain environmental issues like global warming and climate change, in the present day scenario. Capturing CO2 from various stationary industrial emission sources is one of the initial steps to control the aforementioned problems. For this concern, a variety of resources, such as liquid absorbents, solid adsorbents, and membranes, have been utilized for CO2 capturing from various emission sources. Focused on membrane-based CO2 capture, polymeric membranes with composite structure (polymeric composite membrane) offer a better performance in CO2 capturing process than other membranes, due to the composite structure it offers higher gas flux and less material usage, thus facile to use high performed expensive material for membrane fabrication and achieved good efficacy in CO2 capture. This compressive review delivers the utilization of different polymeric composite membranes in CO2 capturing applications. Further, the types of polymeric materials used and the different physicochemical modifications of those membrane materials and their CO2 capturing ability are briefly discussed in the text. In conclusion, the current status and possible perspective ways to improve the CO2 capture process in industrial CO2 gas separation applications are described in this review.