In the field of gas separation membranes

the performance of polymeric membranes undergoes a trade-off limitation between permeability and selectivity

defined as Robeson upper bound. Mixed matrix membranes (MMMs) can combine the advantages of different materials to develop new membrane materials which have the potential to break through the Robeson upper bound. Research into extended materials

such as metal organic frameworks (MOFs)

zeolites

graphene oxide (GO)

carbon nanotubes (CNTs) and their analogues

has blossomed over the last decade. In this context

they have also been identified as promising filler components to prepare MMMs with high CO

2

separation performance. But there still are two problems

aggregation and poor dispersion of fillers

in their applications. Thus

this review focuses on the solutions to the two problems concisely based on recent researches. Recent advances and future development of the mixed matrix membranes

based on MOFs

carbon nano-materials and zeolites

in CO

2

separation were summarized.