Engineered graphene-based mixed matrix membranes to boost CO2 separation performance: Latest developments and future prospects

Utilization of polyphenylene sulfide as an organic additive to enhance gas separation performance in polysulfone membranes

“…The separation performances' absolute values are still uncertain. 63 A new benchmark, known as the filler enhancement index ( F index ), is suggested to integrate the Robeson upper limit and permeability/selectivity improvement diagrams. This criterion evaluates the impact of fillers on membrane separation performance, independent of the properties of the host polymer.…”

How 2D Nanoflakes Improve Transport in Mixed Matrix Membranes: Insights from a Simple Lattice Model and Dynamic Mean Field Theory

“…It is important to mention that the analysis of the experimental data for vertically aligned 2D nanoflakes (oriented perpendicular to the fluid flow) also suggests that the fluid transport through the defects (holes) in the filler elements plays an important role in the overall separation behavior. 34 , 36 This mechanism based on transport within the filler elements and size selectivity is not considered in this work.…”

“…Extensive further experimentations with polymer–filler pairs led to a discovery that filler elements that do not possess their own porosity, such as 2D graphene and GO nanoflakes, may also enhance the separation performance of the hybrid material. − …”

Troger's base polymeric membranes for CO2 separation: a review

“…[147][148][149] The MMMs combined the excellent separation performances of inorganic materials and the good processibility of the polymeric materials, and thus, it is has been widely studied. 150,151 To date, a vast number of materials have been used as llers in MMMs, including traditional inorganic llers such as zeolites, 152 CMS, 153 carbon nanotubes (CNTs), 154 graphene, 155 as well as new porous llers such as metal-organic frameworks (MOFs) 156,157 and covalent-organic frameworks (COFs). 158 Attempts have also been made for developing MMMs based on TB polymers.…”