CO₂-philic moderate selective layer mixed matrix membranes containing surface functionalized NaX towards highly-efficient CO₂ capture.

ABSTRACT: A functional moderate selective layer mixed matrix membrane (F-MSL-MMM) is a promising candidate to obtain superior separation of industrial gases, compared to commonly mixed matrix membranes. In this work, highly permeable and selective F-MSL-MMMs consisting of a moderate Pebax layer filled with functionalized NaX nano-zeolite over a microstructure PES support layer with the desired operating stability were prepared to investigate the effect of -COOH surface functionalization on the NaX nano-zeolites and to achieve the efficient separation of CO₂/N₂, CO₂/CH₄ and CH₄/N₂ gas mixtures. It was found that modification of the nano-zeolite had significant effects on the morphology and gas separation performance of the F-MSL-MMMs.

SUBMITTER: Maleh MS 

PROVIDER: S-EPMC9064279 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature