Stimuli-responsive of magnetic metal-organic frameworks (MMOF): Synthesis, dispersion control, and its tunability into polymer matrix under the augmented-magnetic field for H2 separation and CO2 capturing applications. (29th May 2022)

• Record Type: Journal Article
• Authors: Ashtiani, Saeed; Regmi, Chhabilal; Azadmanjiri, Jalal; Hong, Nguyen Vu; Fíla, Vlatsimil; Průša, Filip; Sofer, Zdeněk; Friess, Karel
• Is Part Of: International journal of hydrogen energy. Volume 47:Number 46(2022)
• Page Start: 20166
• Page End: 20175
• Publication Date: 2022-05-29
• Subjects: Magnetic MOF -- Mixed matrix membrane -- UiO-66-NH2 -- H2 separation -- Magnetic field; Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2022.04.120
• Languages: English
• ISSNs: 0360-3199

Abstract

Abstract: Single-crystal magnetic-responsive core-shell MOF by grafting Fe3 O4 nanoparticles onto the UiO-66-NH2 and their controlled embedding into gas separation mixed matrix membranes was reported. Obtained results confirmed the stimuli-responsive character of the MMOF during their dispersion of MMOF in a well-defined arrays structure in the PMMA matrix. Contrarily, an absence of a magnetic field results in the MMOF aggregation and sedimentation of the particles at the bottom of the membrane. Compared to the non-controlled ones, gas permeability increased by 26.2% for CO2 and 76.67% for H2, and selectivity increased 2.95 and 1.49 times for the CO2 /N2 and H2 /CO2 gas pairs, respectively. Moreover, obtained permeability-selectivity values for the H2 /CO2 gas pairs overcome the appropriate modified 2008 Robeson upper bound. Graphical abstract: Image 1 Highlights: Synthesis single crystal magnetic MOFs coreshell. Fabricating Fe3 O4 -UiO-66-NH2 -PMMA mixed matrix membrane. Using magnetic field for alignment embedding of MMOFs. Enhancement of H2 separation and CO2 capturing.