Effects of Latent Solvent Content on Tuning the Nanofiltration Performance of Nanofibrous Composite Membranes DOI Creative Commons
Xudong Cao, Yiqin Shao, Qian Wang

et al.

Membranes, Journal Year: 2025, Volume and Issue: 15(4), P. 118 - 118

Published: April 8, 2025

This study aims to optimize the application of electrospun nanofibrous substrates in thin-film composite (TFC) nanofiltration (NF) membranes for enhanced liquid separation efficiency by employing a method effective welding between fibers using latent solvents. Polyacrylonitrile (PAN) nanofiber were fabricated via electrospinning, and dense polyamide selective layer was formed on their surface through interfacial polymerization (IP). The investigation focused effects different solvent systems, particularly role dimethyl sulfoxide (DMSO) as solvent, nanostructure final membrane performance. results indicate that increasing DMSO content can enhance greenness fabrication process, substrate hydrophilicity, mechanical strength, while also influencing thickness morphology layer. At rate 30%, achieves optimal pure water permeability high rejection rates; when exceeds 40%, structural inhomogeneity leads an increase defects, significantly deteriorating These findings provide theoretical insights technical guidance electrospinning technology designing efficient stable NF membranes.

Language: Английский

High-Efficiency and Low-Resistance Melt-Blown/Electrospun PLA Composites for Air Filtration DOI Open Access
Yongmei Guo, Mingdong Wu, Xiaojian Ye

et al.

Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 424 - 424

Published: Feb. 6, 2025

Biodegradable polylactic acid (PLA) was used to fabricate nonwoven fabrics via the melt blowing process, followed by electrospinning deposit a nanofiber membrane. This composite process yielded PLA melt-blown/electrospun materials with excellent filtration performance. The effects of solution concentration and spinning duration on structure material performance were investigated. optimal produced using 10 wt.% prepared solvent mixture dichloromethane (DCM) N, N-dimethylformamide (DMF) in 75/25 weight ratio. parameters included 5 h, 18 kV voltage, 1.5 mL/h flow rate, 12 cm collection distance. resulting achieved efficiency 98.7%, pressure drop 142 Pa, an average pore size μm, contact angle 138.7°. These results provided for preparing materials. study highlights potential hydrophobic composites high low air resistance as environmentally friendly alternatives traditional non-degradable

Language: Английский

Citations

0
Fabrication of a flexible nanofiber membrane for SERS detection of pollutants: An efficient and eco-friendly approach DOI
Lu Bai,

Xue Pan,

Zhicheng Liu

et al.

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2025, Volume and Issue: unknown, P. 125920 - 125920

Published: Feb. 1, 2025

Language: Английский

Citations

0
Electrospun Fibers from Biobased and Recycled Materials for Indoor Air Quality Enhancement DOI Creative Commons

Natalia Czerwinska,

Chiara Giosué,

Nicola Generosi

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(6), P. 1214 - 1214

Published: March 8, 2025

Air filters are crucial components of building ventilation systems. Compared to conventional air filter media like glass fibers and melt-blown fibers, electrospinning membranes more efficient for capturing various pollutants due the smaller pores present on structure. In this paper, activated carbon were prepared with eco-friendly polylactic acid (PLA) microcrystalline cellulose (MCC) using obtain a high-quality factor (QF) fibrous mat aerosol particle matter (PM) filtration volatile organic compounds (VOCs) adsorption. Several configurations final investigated tested fiber morphology performance. Filtering efficiency adsorption properties evaluated in real-scale room by measuring penetration newly synthesized commercial against neutralized particles (3% NaCl aqueous solution) VOCs (methyl ethyl ketone). The calculated depolluting efficiencies up 98% terms PM 55% abatement, respectively. Our results indicate that proposed hybrid represent promising materials highly sustainable home application

Language: Английский

Citations

0
Effects of Latent Solvent Content on Tuning the Nanofiltration Performance of Nanofibrous Composite Membranes DOI Creative Commons
Xudong Cao, Yiqin Shao, Qian Wang

et al.

Membranes, Journal Year: 2025, Volume and Issue: 15(4), P. 118 - 118

Published: April 8, 2025

This study aims to optimize the application of electrospun nanofibrous substrates in thin-film composite (TFC) nanofiltration (NF) membranes for enhanced liquid separation efficiency by employing a method effective welding between fibers using latent solvents. Polyacrylonitrile (PAN) nanofiber were fabricated via electrospinning, and dense polyamide selective layer was formed on their surface through interfacial polymerization (IP). The investigation focused effects different solvent systems, particularly role dimethyl sulfoxide (DMSO) as solvent, nanostructure final membrane performance. results indicate that increasing DMSO content can enhance greenness fabrication process, substrate hydrophilicity, mechanical strength, while also influencing thickness morphology layer. At rate 30%, achieves optimal pure water permeability high rejection rates; when exceeds 40%, structural inhomogeneity leads an increase defects, significantly deteriorating These findings provide theoretical insights technical guidance electrospinning technology designing efficient stable NF membranes.

Language: Английский

Citations

0