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

J 2026

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

FLOREKOVA, Jana; Tomáš POKORNÝ; Saeed ASHTIANI; Johannes Carolus JANSEN; Alessio FUOCO et al.

Základní údaje

Originální název

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

Autoři

FLOREKOVA, Jana; Tomáš POKORNÝ; Saeed ASHTIANI; Johannes Carolus JANSEN; Alessio FUOCO; Mariagiulia LONGO; Josef SCHNEIDER; Filip PRUSA a Karel FRIESS

Vydání

SEPARATION AND PURIFICATION TECHNOLOGY, AMSTERDAM, ELSEVIER, 2026, 1383-5866

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10400 1.4 Chemical sciences

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 9.000 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Mixed matrix membranes (MMMs); Metal-organic frameworks (MOFs); CO 2 capture; Magnetic nanoparticles

Štítky

14313010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 11. 3. 2026 10:14, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

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 20 wt% 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 FTIR, SEM, XRD, EDX, TGA, BET, and surface roughness measurements. Gas permeation tests demonstrated that controlled embedding significantly improved additive distribution and membrane homogeneity, enhancing both gas permeability and selectivity compared to the neat polymer and MMMs with randomly embedded fillers. CO2 permeability increased from 71.5 (neat) to 245 Barrer (20 wt% of MNPs), with selectivity rising from 43.6 to 73.3 for CO2/N2 and from 18.2 to 21.0 for CO2/CH4. For O2/N2, permeability increased from 3.30 to 26.8 Barrer and selectivity from 2.0 to 6.4. SEM revealed well-ordered, chain-like MNP arrays in aligned membranes, while XRD showed preferred orientation of diffraction planes. These structural features were absent in neat Pebax and non-aligned variants, confirming the effect of magnetic alignment on filler organization. This study highlights the efficiency of controlled embedding as a strategy for enhancing Pebax®1657-based MMMs for advanced gas separation.

Citovat

FLOREKOVA, Jana; Tomáš POKORNÝ; Saeed ASHTIANI; Johannes Carolus JANSEN; Alessio FUOCO; Mariagiulia LONGO; Josef SCHNEIDER; Filip PRUSA a Karel FRIESS. 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. AMSTERDAM: ELSEVIER, 2026, roč. 380, February, s. 1-15. ISSN 1383-5866. Dostupné z: https://doi.org/10.1016/j.seppur.2025.135107.

@article{2550606,
   author = {Florekova, Jana and Pokorný, Tomáš and Ashtiani, Saeed and Jansen, Johannes Carolus and Fuoco, Alessio and Longo, Mariagiulia and Schneider, Josef and Prusa, Filip and Friess, Karel},
   article_location = {AMSTERDAM},
   article_number = {February},
   doi = {https://doi.org/10.1016/j.seppur.2025.135107},
   keywords = {Mixed matrix membranes (MMMs); Metal-organic frameworks (MOFs); CO 2 capture; Magnetic nanoparticles},
   language = {eng},
   issn = {1383-5866},
   journal = {SEPARATION AND PURIFICATION TECHNOLOGY},
   title = {Controlled embedding of magnetically oriented Zr-MOF/Mn–Fe oxide nanohybrids in MMMs for enhancement of CO2/N2, CO2/CH4 and O2/N2 separation},
   url = {https://www.sciencedirect.com/science/article/pii/S1383586625037049},
   volume = {380},
   year = {2026}
}

TY  - JOUR
ID  - 2550606
AU  - Florekova, Jana - Pokorný, Tomáš - Ashtiani, Saeed - Jansen, Johannes Carolus - Fuoco, Alessio - Longo, Mariagiulia - Schneider, Josef - Prusa, Filip - Friess, Karel
PY  - 2026
TI  - Controlled embedding of magnetically oriented Zr-MOF/Mn–Fe oxide nanohybrids in MMMs for enhancement of CO2/N2, CO2/CH4 and O2/N2 separation
JF  - SEPARATION AND PURIFICATION TECHNOLOGY
VL  - 380
IS  - February
SP  - 1-15
EP  - 1-15
PB  - ELSEVIER
SN  - 13835866
KW  - Mixed matrix membranes (MMMs)
KW  - Metal-organic frameworks (MOFs)
KW  - CO 2 capture
KW  - Magnetic nanoparticles
UR  - https://www.sciencedirect.com/science/article/pii/S1383586625037049
N2  - 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 20 wt% 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 FTIR, SEM, XRD, EDX, TGA, BET, and surface roughness measurements. Gas permeation tests demonstrated that controlled embedding significantly improved additive distribution and membrane homogeneity, enhancing both gas permeability and selectivity compared to the neat polymer and MMMs with randomly embedded fillers. CO2 permeability increased from 71.5 (neat) to 245 Barrer (20 wt% of MNPs), with selectivity rising from 43.6 to 73.3 for CO2/N2 and from 18.2 to 21.0 for CO2/CH4. For O2/N2, permeability increased from 3.30 to 26.8 Barrer and selectivity from 2.0 to 6.4. SEM revealed well-ordered, chain-like MNP arrays in aligned membranes, while XRD showed preferred orientation of diffraction planes. These structural features were absent in neat Pebax and non-aligned variants, confirming the effect of magnetic alignment on filler organization. This study highlights the efficiency of controlled embedding as a strategy for enhancing Pebax®1657-based MMMs for advanced gas separation.
ER  -

FLOREKOVA, Jana; Tomáš POKORNÝ; Saeed ASHTIANI; Johannes Carolus JANSEN; Alessio FUOCO; Mariagiulia LONGO; Josef SCHNEIDER; Filip PRUSA a Karel FRIESS. Controlled embedding of magnetically oriented Zr-MOF/Mn–Fe oxide nanohybrids in MMMs for enhancement of CO2/N2, CO2/CH4 and O2/N2 separation. \textit{SEPARATION AND PURIFICATION TECHNOLOGY}. AMSTERDAM: ELSEVIER, 2026, roč.~380, February, s.~1-15. ISSN~1383-5866. Dostupné z: https://doi.org/10.1016/j.seppur.2025.135107.

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