Recyclable Supramolecular Nanofibrous Composite Membranes for Efficient Air Filtration DOI
Wenjing Sun, Senjie Dong, Mingxia Gao

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Abstract Developing high‐performance, low‐resistance, and recyclable air filtration materials remains a formidable challenge. Herein, silica nanoparticles (SiO 2 NPs) supramolecular complexes consisting of melamine (MA) trimesic acid (TMA) are constructed as SiO @MA·TMA nanofibrous composite membrane via thermally induced precursor process (TIPC) for efficient particulate matter (PM) removal. Hydrophilic NPs additional nucleation mediators can not only promote the growth MA·TMA nanocrystalline fibers by shortening interfacial free energy thus reducing barrier, but also increase fiber surface roughness constructing hierarchical structure membrane. Under synergy NPs, membranes possess high efficiency 99.82% PM 1 , 99.96% 2.5 99.98% 10 with low resistance (153 Pa, <0.15% standard atmospheric pressure). Taking advantage reversible property complexes, closed‐loop recycling realized. Only green solvents (water ethanol) involved in TIPC process, making this strategy environmentally‐friendly cost‐effective. This work provides an innovative preparation materials, opens avenue development high‐performance filters.

Language: Английский

Recyclable Supramolecular Nanofibrous Composite Membranes for Efficient Air Filtration DOI
Wenjing Sun, Senjie Dong, Mingxia Gao

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Abstract Developing high‐performance, low‐resistance, and recyclable air filtration materials remains a formidable challenge. Herein, silica nanoparticles (SiO 2 NPs) supramolecular complexes consisting of melamine (MA) trimesic acid (TMA) are constructed as SiO @MA·TMA nanofibrous composite membrane via thermally induced precursor process (TIPC) for efficient particulate matter (PM) removal. Hydrophilic NPs additional nucleation mediators can not only promote the growth MA·TMA nanocrystalline fibers by shortening interfacial free energy thus reducing barrier, but also increase fiber surface roughness constructing hierarchical structure membrane. Under synergy NPs, membranes possess high efficiency 99.82% PM 1 , 99.96% 2.5 99.98% 10 with low resistance (153 Pa, <0.15% standard atmospheric pressure). Taking advantage reversible property complexes, closed‐loop recycling realized. Only green solvents (water ethanol) involved in TIPC process, making this strategy environmentally‐friendly cost‐effective. This work provides an innovative preparation materials, opens avenue development high‐performance filters.

Language: Английский

Citations

1