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

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

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