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

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

Single-crystal magnetic-responsive core-shell MOF by grafting Fe3O4 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 w...

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Bibliographic Details
Published in:International journal of hydrogen energy Vol. 47; no. 46; pp. 20166 - 20175
Main Authors: Ashtiani, Saeed, Regmi, Chhabilal, Azadmanjiri, Jalal, Hong, Nguyen Vu, Fíla, Vlatsimil, Průša, Filip, Sofer, Zdeněk, Friess, Karel
Format: Journal Article
Language:English
Published: Elsevier Ltd 29-05-2022
Subjects:
H2 separation
Magnetic field
Magnetic MOF
Mixed matrix membrane
UiO-66-NH2
Mixed matrix membrane
UiO-66-NH2
H2 separation
Magnetic MOF
Magnetic field
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Summary:Single-crystal magnetic-responsive core-shell MOF by grafting Fe3O4 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. [Display omitted] •Synthesis single crystal magnetic MOFs coreshell.•Fabricating Fe3O4-UiO-66-NH2-PMMA mixed matrix membrane.•Using magnetic field for alignment embedding of MMOFs.•Enhancement of H2 separation and CO2 capturing.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2022.04.120