Ultrasmall Functionalized UiO-66 Nanoparticle/Polymer Pebax 1657 Thin-Film Nanocomposite Membranes for Optimal CO₂ Separation.

ABSTRACT: Ultrasmall 4 to 6 nm nanoparticles of the metal-organic framework (MOF) UiO-66 (University of Oslo-66) were successfully prepared and embedded into the polymer Pebax 1657 to fabricate thin-film nanocomposite (TFN) membranes for CO₂/N₂ and CO₂/CH₄ separations. Furthermore, it has been demonstrated that ligand functionalization with amino (-NH₂) and nitro (-NO₂) groups significantly enhances the gas separation performance of the membranes. For CO₂/N₂ separation, 7.5 wt % UiO-66-NH₂ nanoparticles provided a 53% improvement in CO₂ permeance over the pristine membrane (from 181 to 277 GPU). Regarding the CO₂/N₂ selectivity, the membranes prepared with 5 wt % UiO-66

SUBMITTER: Martinez-Izquierdo L 

PROVIDER: S-EPMC10811625 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature