Biodegradable Cellulose Acetate Nanofibrous Membranes with Self-Sustaining Electrostatic Effect for Efficient and Stable Air Purification DOI

Dan Cao,

Jun Xiang, Xi Chen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Amid the global pursuit of carbon neutrality and pressing challenge severe air pollution, degradable cellulose acetate (CA) materials hold great potential in field filtration. However, their weak polarity poor antibacterial properties limit widespread application this field. Herein, we developed CA-based nanofibrous membranes (CAPZ NFMs) with antimicrobial properties, which achieved efficient stable filtration performance through a self-sustaining electrostatic effect driven by polarity. CAPZ NFMs were fabricated electrospinning solution that contained CA, highly polar zwitterionic copolymers (PSG), biocompatible Zr4+. The groups PSG increased to 19.62 mN·m-1, significantly surpassing pristine CA (2.94 mN·m-1). This enhancement granted surface 2.07 kV, enabled PM0.3 efficiency 99.56% while maintaining low pressure drop 79 Pa. Notably, maintained superior under high humidity conditions 6 months outdoor storage. Additionally, Zr4+ coordinated form quaternary ammonium groups, endowing broad-spectrum efficacy over 99.99%. work could provide new strategies for developing next-generation biodegradable, high-electrostatic materials.

Language: Английский

Biodegradable Cellulose Acetate Nanofibrous Membranes with Self-Sustaining Electrostatic Effect for Efficient and Stable Air Purification DOI

Dan Cao,

Jun Xiang, Xi Chen

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: March 28, 2025

Amid the global pursuit of carbon neutrality and pressing challenge severe air pollution, degradable cellulose acetate (CA) materials hold great potential in field filtration. However, their weak polarity poor antibacterial properties limit widespread application this field. Herein, we developed CA-based nanofibrous membranes (CAPZ NFMs) with antimicrobial properties, which achieved efficient stable filtration performance through a self-sustaining electrostatic effect driven by polarity. CAPZ NFMs were fabricated electrospinning solution that contained CA, highly polar zwitterionic copolymers (PSG), biocompatible Zr4+. The groups PSG increased to 19.62 mN·m-1, significantly surpassing pristine CA (2.94 mN·m-1). This enhancement granted surface 2.07 kV, enabled PM0.3 efficiency 99.56% while maintaining low pressure drop 79 Pa. Notably, maintained superior under high humidity conditions 6 months outdoor storage. Additionally, Zr4+ coordinated form quaternary ammonium groups, endowing broad-spectrum efficacy over 99.99%. work could provide new strategies for developing next-generation biodegradable, high-electrostatic materials.

Language: Английский

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