Dataset for article Controlled embedding of magnetically oriented Zr-MOF/Mn–Fe oxide nanohybrids in MMMs for enhancement of CO₂/N₂, CO₂/CH₄ and O₂/N₂ separation

____________________Dataset for article Controlled embedding of magnetically oriented Zr-MOF/Mn–Fe oxide nanohybrids in MMMs for enhancement of CO₂/N₂, CO₂/CH₄ and O₂/N₂ separation____________________ Last updated: 2026-01-12DOI: 10.5281/zenodo.18196625 ______Contact______* Karel Friess* Karel.Friess@vscht.cz* +420 220 44 4029* ORCID: 0000-0002-1858-0555* Dept. of Physical Chemistry. Faculty of Chemical Engineering, University of chemistry and Technology, Prague* Technicka 5, 166 28, Prague 6, Czech Republic ______Licence______*Dataset for article “Controlled embedding of magnetically oriented Zr-MOF/Mn–Fe oxide nanohybrids in MMMs for enhancement of CO₂/N₂, CO₂/CH₄ and O₂/N₂ separation” 2025 by Jana Florekova, Tomas Pokorny, Saeed Ashtiani, Johannes Carolus Jansen, Alessio Fuoco, Mariagiulia Longo, Josef Schneider, Filip Průša, Karel Friess is licensed under CC BY NC 4.0*licence information: https://creativecommons.org/licenses/by-nc/4.0/ ------------------------------------------------------------------------------------------------ ______About the dataset______Addressing the global challenge of climate change necessitates the development of innovative technologies for efficient gas separation, particularly for CO2 capture. Mixed matrix membranes (MMMs) offer a promising solution by synergically integrating the CO2-selective Pebax®1657 with the intrinsic properties of metal–organic frameworks such as UiO-66. Herein, we focus on synthesizing, fabricating, and characterizing Pebax®1657-based MMMs with 0 (neat polymer), 5, 10, 15, and 20wt% of composite magnetic nanoparticles (MNPs) derived from amine-functionalized UiO-66 and Mn-Fe oxide nanoparticles. An external magnetic field applied during membrane casting enabled the controlled embedding of MNPs. Material properties were analyzed using Fourier Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDX), Thermogravimetric Analysis (TGA), Brunauer–Emmett–Teller method (BET), and surface roughness measurements. ______Methods of data collection______*More detailed description can be found in article: Floreková, J.; Pokorný, T.; Ashtiani, S.; Jansen, J. C.; Fuoco, A.; Longo, M.; Schneider, J.; Průša, F.; Friess, K. Controlled embedding of magnetically oriented Zr-MOF/Mn–Fe oxide nanohybrids in MMMs for enhancement of CO2/N2, CO2/CH4 and O2/N2 separation. Separation and Purification Technology 2026, 380, 135107. DOI: https://doi.org/10.1016/j.seppur.2025.135107. *Sample preparationSamples were prepared in advance before the measurement. The preparation is described for each method in detail in the article:Floreková, J.; Pokorný, T.; Ashtiani, S.; Jansen, J. C.; Fuoco, A.; Longo, M.; Schneider, J.; Průša, F.; Friess, K. Controlled embedding of magnetically oriented Zr-MOF/Mn–Fe oxide nanohybrids in MMMs for enhancement of CO2/N2, CO2/CH4 and O2/N2 separation. Separation and Purification Technology 2026, 380, 135107. DOI: https://doi.org/10.1016/j.seppur.2025.135107. * Pyris diamond differential scanning calorimeter (DSC):HW: a Pyris Diamond differential scanning calorimeter (DSC, Perkin Elmer, USA) and equipped with an Intracooler cooling system; samples weighing 10–15 mg were placed in a small aluminum foil pan (