Research progress of preparation methods of CO₂-favored permeation membranes

The separation and recovery of carbon dioxide (CO₂) have attracted worldwide attention since CO₂ is not only a main greenhouse gas but also a important carbon resources. Compared with conventional methods of CO₂ separation, the way of membrane separation has many extraordinary advantages. In this paper, the recent methods of preparing sorts of CO₂-favored permeation membranes including inorganic membranes, polymeric membranes and facilitated transport membranes were reviewed. And the development prospect of different CO₂-favored permeation membranes was discussed, accordingly.