Moisture-Resistant Nanofiber Membrane Loaded with Copper-Manganese-Tin Oxides for Dust and CO Filtration in High Humidity Environments

IF 19 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY Advanced Functional Materials Pub Date : 2024-12-01 DOI:10.1002/adfm.202419533

Gang Zhou, Guanshuang Chen, Yueying Xin, Jialu Pang, Jialin Wang, Liwei Jiang, Rulin Liu

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Abstract

This study presents a novel protective membrane, (0.8MnCuSnO_x-NaCl)@M, designed for high-efficiency filtration of dust particles and carbon monoxide (CO) gas offers superior moisture resistance, air permeability, and catalytic functionality in high-humidity underground settings. The membrane, incorporating tin oxide-doped CuMnO_x into polyvinylidene fluoride (PVDF) fibers with sodium chloride (NaCl), achieves 99.99% air filtration efficiency, 323.68 mm s⁻¹ air permeability, and 92.5% CO catalytic filtration efficiency. Concurrently, the membrane exhibited exceptional hydrophobicity, characterized by a substantial water contact angle of 116.7°, negligible water staining, and a high hydrostatic pressure rating of 2035 Pa, suitable for humid environments. Furthermore, the water absorption profile of the membrane featured a diminished hydroxyl vibrational band, accompanied by a sustained CO conversion efficiency, attesting to its resistance to moisture-induced deterioration. Computational fluid dynamics (CFD) simulations further clarify the membrane's filtration mechanism, indicating its potential for selective CO and particle filtration. This study provides a reliable idea for the development of moisture-resistant fiber membranes with high efficiency for filtration of dust and CO. and underscores the synergy of experimental and theoretical approaches.

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载铜锰锡氧化物的耐湿纳米纤维膜在高湿环境中用于粉尘和CO过滤

本研究提出了一种新型保护膜，（0.8MnCuSnOx‐NaCl）@M，设计用于高效过滤灰尘颗粒和一氧化碳（CO）气体，在高湿的地下环境中具有优异的防潮性、透气性和催化功能。将氧化锡掺杂的CuMnOx加入氯化钠（NaCl）的聚偏氟乙烯（PVDF）纤维中，该膜的空气过滤效率为99.99%，透气性为323.68 mm s−1，CO催化过滤效率为92.5%。同时，该膜表现出优异的疏水性，其特点是水接触角为116.7°，水染色可以忽略，静水压力等级为2035 Pa，适合潮湿环境。此外，膜的吸水谱特征是羟基振动带减少，伴随着持续的CO转换效率，证明其抗水分诱导的劣化。计算流体动力学（CFD）模拟进一步阐明了膜的过滤机制，表明其具有选择性CO和颗粒过滤的潜力。该研究为开发高效过滤粉尘和co的抗湿纤维膜提供了可靠的思路，并强调了实验和理论方法的协同作用。

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来源期刊

Advanced Functional Materials 工程技术-材料科学：综合

CiteScore

29.50

自引率

4.20%

发文量

2086

审稿时长

2.1 months

期刊介绍： Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week. Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.