Holmium-Containing Metal-Organic Frameworks as Modifiers for PEBA-Based Membranes DOI Open Access
Anna Kuzminova, Mariia Dmitrenko,

Kirill Salomatin

et al.

Polymers, Journal Year: 2023, Volume and Issue: 15(18), P. 3834 - 3834

Published: Sept. 20, 2023

Recently, there has been an active search for new modifiers to create hybrid polymeric materials various applications, in particular, membrane technology. One of the topical is metal-organic frameworks (MOFs), which can significantly alter characteristics obtained mixed matrix membranes (MMMs). In this work, holmium-based MOFs (Ho-MOFs) were synthesized polyether block amide (PEBA) modification develop novel MMMs with improved properties. The study Ho-MOFs, polymers and was carried out by methods X-ray phase analysis, scanning electron atomic force microscopies, Fourier transform infrared spectroscopy, low-temperature nitrogen adsorption, dynamic kinematic viscosity, static light scattering, gel permeation chromatography, thermogravimetric analysis contact angle measurements. Synthesized Ho-MOFs had different structures, particle forms sizes depending on ligand used. To effect Ho-MOF modifier transport properties, PEBA/Ho-MOFs retention capacity evaluated vacuum fourth-stage filtration dye removal (Congo Red, Fuchsin, Glycine thymol blue, Methylene Eriochrome Black T). Modified demonstrated flux rejection coefficients dyes containing amino groups: Congo Fuchsin (PEBA/Ho-1,3,5-H3btc possessed optimal properties: 81% 68% Red filtration, respectively, 0.7 L/(m2s) flux).

Language: Английский

Advancements in Mixed-Matrix Membranes for Various Separation Applications: State of the Art and Future Prospects DOI Creative Commons
Bhoga Arundhathi, Manideep Pabba,

Shrisha S. Raj

et al.

Membranes, Journal Year: 2024, Volume and Issue: 14(11), P. 224 - 224

Published: Oct. 25, 2024

Integrating nanomaterials into membranes has revolutionized selective transport processes, offering enhanced properties and functionalities. Mixed-matrix (MMMs) are nanocomposite (NCMs) that incorporate inorganic nanoparticles (NPs) organic polymeric matrices, augmenting mechanical strength, thermal stability, separation performance, antifouling characteristics. Various synthesis methods, like phase inversion, layer-by-layer assembly, electrospinning, surface modification, enable the production of tailored MMMs. A trade-off exists between selectivity flux in pristine polymer or plain ceramic/zeolite membranes. In contrast, MMMs, NPs exert a profound influence on membrane enhancing both permeability simultaneously, besides exhibiting antibacterial efficacy. Membranes reported this work find application diverse notably niche membrane-based applications, by addressing challenges such as fouling degradation, low flux, selectivity, poor rejection properties. This review comprehensively surveys recent advances nanoparticle-integrated across various fields water purification, heavy metal removal, dye gaseous separation, pervaporation (PV), fuel cells (FC), desalination. Efforts have been made to underscore role advancing environmental remediation efforts drinking quality concerns through interesting case studies literature.

Language: Английский

Citations

5
Development and Study of Novel Ultrafiltration Membranes Based on Cellulose Acetate DOI Open Access
Anna Kuzminova, Mariia Dmitrenko, Roman Dubovenko

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(9), P. 1236 - 1236

Published: April 28, 2024

Recently, increasing attention of researchers in the field membrane technology has been paid to development membranes based on biopolymers. One well-proven polymers for porous is cellulose acetate (CA). This paper devoted study influence different parameters ultrafiltration CA formation and their transport properties, such as variation coagulation bath temperature, shrinkage (post-treatment at 80 °C), introduction casting solution (polyethylene glycol (PEG), polysulfone (PS), Pluronic F127 (PL)) carbon nanoparticles (SWCNTs, MWCNTs, GO, C60). The structural physicochemical properties developed were studied by scanning electron atomic force microscopies, Fourier-transform infrared spectroscopy, X-ray photoelectron contact angle measurements. CA-based evaluated bovine serum albumin (BSA), dextran 110 PVP K-90. All rejected 90% compounds with a molecular weight from ~270,000 g/mol. It was shown that combination modifications (addition PEG, PS, PL, PS-PL, 0.5 wt% C60) led an increase fluxes BSA rejection coefficients slight decrease flux recovery ratio. These changes due increased macrovoid number, more open structure and/or thinner top selective, decreased surface roughness hydrophobization during C60 modification blend membranes. Optimal found CA-PEG+C60 (the highest water—394 L/(m2h) BSA—212 fluxes) CA-PS+C60 (maximal coefficient BSA—59%)

Language: Английский

Citations

4
Improved gas separation performance of PMMA/Matrimid@5218/graphene oxide (GO) mixed matrix membranes DOI Creative Commons
Ahmad Salehi, Mohammadreza Omidkhah, Abtin Ebadi Amooghin

et al.

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 91, P. 103012 - 103012

Published: Dec. 30, 2024

Language: Английский

Citations

4
Thin-Film Composite Polyamide Membranes Modified with HKUST-1 for Water Treatment: Characterization and Nanofiltration Performance DOI Open Access
Roman Dubovenko, Mariia Dmitrenko, Anna Mikulan

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(9), P. 1137 - 1137

Published: April 22, 2025

The development of sustainable nanofiltration membranes requires alternatives to petroleum-derived polymer substrates. This study demonstrates the successful use an eco-friendly cellulose acetate/cellulose nitrate (CA/CN) blend substrate for fabricating high-performance modified thin-film composite (mTFC) membranes. A dense, non-porous polyamide (PA) selective layer was formed via interfacial polymerization method and with 0.05–0.1 wt.% HKUST-1 (Cu3BTC2, MOF-199). Characterization by FTIR, XPS, SEM, AFM, contact angle measurements confirmed CA/CN substrate’s suitability TFC membrane fabrication. incorporation created a distinctive ridge-and-valley morphology while significantly altering PA hydrophilicity roughness. mTFC performance could be fine-tuned controlled HKUST-1; through aqueous phase slowed down formation reduced its thickness, addition organic resulted in denser due agglomeration. Thus, either enhanced permeability (123 LMH bar−1 0.05 aqueous-phase incorporation) or rejection (>89% dye removal organic-phase were achieved. Both also exhibited improved heavy metal ion (>91.7%), confirming their industrial potential. Higher loading (0.1 wt.%) caused MOF agglomeration, reducing performance. approach establishes fabrication route tunable targeting specific separation tasks.

Language: Английский

Citations

0
Hybrid membranes of polyphenylsulfone/functionalized MXene nanosheets for the pervaporation dehydration of acetone and isopropyl alcohol DOI

Mahya Najafipour,

Seyed Mahmoud Mousavi, Ehsan Saljoughi

et al.

Polymer Composites, Journal Year: 2023, Volume and Issue: 44(8), P. 4771 - 4783

Published: May 25, 2023

Abstract The resistance of pervaporation (PV) dehydration membranes to organic solvents is great importance. Polyphenylsulfone (PPSU) known resist most media; however, its acetone performance has not been evaluated yet. In the present study, MXene hydrophilic nanosheets with hydroxyl functional groups were synthesized and then incorporated in PPSU membrane prepare PPSU/MXene PV for first time. prepared used acetone/water isopropyl alcohol (IPA)/water. By comparing attenuated total reflectance Fourier transform infrared spectroscopy spectra pure nanocomposite membrane, incorporation into via loading was confirmed. improved hydrophilicity tensile properties membrane. separation factor dropped up 1 wt% increased further loading; it stayed almost unchanged IPA adding 0.5, 1, 1.5 Incorporating MXene, index (PSI) by 5.8 times 9.7 dehydration. PPSU/1 provided a remarkably higher (261 vs. 136) PSI (99 58 kg/m 2 h) than dehydration; flux slightly lower (0.38 0.43 h). This study implies that promising material organics. Highlights synthesized. loaded polyphenylsulfone

Language: Английский

Citations

5
Enhanced Sodium Alginate Membranes Modified with Metal–Organic Frameworks Based on Zirconium for Energy-Efficient Isopropanol Dehydration by Pervaporation DOI
Roman Dubovenko, Anna Kuzminova, Mariia Dmitrenko

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(20), P. 12675 - 12690

Published: Oct. 8, 2024

The zirconium-based metal–organic framework (Zr-MOF) class presents promising modifiers with excellent water stability and adsorption ability for the development of pervaporation mixed matrix membranes (MMMs). Thus, in this study, effect introduction Zr-MOF MIL-140A various ligands into sodium alginate (SA) was investigated order to develop enhanced characteristics dehydration. improved SA membrane were achieved by variation concentration (2–5 wt %), different its structure (MIL-140A-AcOH, MIL-140A-AcOH-EDTA), CaCl2 cross-linking. prepared Zr-MOF, composites, characterized using attenuated total reflectance-Fourier transform infrared spectroscopy, analysis low-temperature nitrogen adsorption, scanning electron microscopy, atomic force X-ray diffraction analysis, thermogravimetric contact angle liquid uptake measurements. transport properties tested dehydration isopropanol (IPA). results from quantum chemical computational experiments employed explain observed changes interactions. It shown that modification these Zr-MOFs led improvement performance, particular permeation flux, due their unique porous structure, functional groups, favorable interaction components feed. SA+MIL-140A(4%) cross-linked exhibited best (12–70 % water): highest flux 200–540 g m–2 h–1 maintaining 99.99 content permeate.

Language: Английский

Citations

1
PVDF Membrane Formation via NIPS in Isothermal and Non-Isothermal Conditions: Thermodynamics, Structure, and Properties DOI
K. V. Pochivalov, Andrey V. Basko, T. N. Lebedeva

et al.

Membranes and Membrane Technologies, Journal Year: 2024, Volume and Issue: 6(6), P. 473 - 490

Published: Dec. 1, 2024

Language: Английский

Citations

0
Holmium-Containing Metal-Organic Frameworks as Modifiers for PEBA-Based Membranes DOI Open Access
Anna Kuzminova, Mariia Dmitrenko,

Kirill Salomatin

et al.

Polymers, Journal Year: 2023, Volume and Issue: 15(18), P. 3834 - 3834

Published: Sept. 20, 2023

Recently, there has been an active search for new modifiers to create hybrid polymeric materials various applications, in particular, membrane technology. One of the topical is metal-organic frameworks (MOFs), which can significantly alter characteristics obtained mixed matrix membranes (MMMs). In this work, holmium-based MOFs (Ho-MOFs) were synthesized polyether block amide (PEBA) modification develop novel MMMs with improved properties. The study Ho-MOFs, polymers and was carried out by methods X-ray phase analysis, scanning electron atomic force microscopies, Fourier transform infrared spectroscopy, low-temperature nitrogen adsorption, dynamic kinematic viscosity, static light scattering, gel permeation chromatography, thermogravimetric analysis contact angle measurements. Synthesized Ho-MOFs had different structures, particle forms sizes depending on ligand used. To effect Ho-MOF modifier transport properties, PEBA/Ho-MOFs retention capacity evaluated vacuum fourth-stage filtration dye removal (Congo Red, Fuchsin, Glycine thymol blue, Methylene Eriochrome Black T). Modified demonstrated flux rejection coefficients dyes containing amino groups: Congo Fuchsin (PEBA/Ho-1,3,5-H3btc possessed optimal properties: 81% 68% Red filtration, respectively, 0.7 L/(m2s) flux).

Language: Английский

Citations

1