Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, China.
Sci Total Environ. 2021 Jul 10;777:145768. doi: 10.1016/j.scitotenv.2021.145768. Epub 2021 Feb 15.
Recently, the pandemic infectious diseases caused by coronavirus have prompted the development of air filter membranes to against infectious agents and protect human health. This research focuses on air filter membrane with antibacterial and antiviral property for high-efficiency particulate matter (PM) removal. Herein, polyamide-6 electrospun nanofibers were anchored with silver nanoparticles through hydrogen-bond. Bumpy nanorough surface and multilevel structure contribute to improve capture capacity, and silver nanoparticles provide a strong ability to inactivate bacteria and virus. In conclusion, this membrane exhibits high PM filtration efficiency of 99.99% and low pressure drop of 31 Pa; simultaneous removal of multiple aerosol pollutants, e.g., SO, NO, methylbenzene, L-Nicotine; superior antibacterial performance against Escherichia coli (Gram negative bacteria) and Staphylococcus aureus (Gram positive bacteria), antiviral property against Porcine Deltacoronavirus and not significant cytotoxicity. Research of air filtration material is important to remove air pollutants and to prevent infection and spread of respiratory infectious diseases.
最近，由冠状病毒引起的大流行传染病促使开发了空气过滤膜来对抗传染病原体，保护人类健康。本研究专注于具有抗菌和抗病毒性能的空气过滤膜，用于高效去除颗粒物 (PM)。本文通过氢键将银纳米粒子锚定在聚酰胺-6 电纺纳米纤维上。凹凸不平的纳米粗糙表面和多层次结构有助于提高捕获能力，而银纳米粒子提供了强大的灭活细菌和病毒的能力。总之，该膜表现出高的 PM 过滤效率为 99.99%和低的压降为 31 Pa；同时去除多种气溶胶污染物，例如 SO、NO、甲苯、L-尼古丁；对大肠杆菌（革兰氏阴性菌）和金黄色葡萄球菌（革兰氏阳性菌）具有优异的抗菌性能，对猪德尔塔冠状病毒具有抗病毒性能，且细胞毒性不显著。空气过滤材料的研究对于去除空气污染物以及预防呼吸道传染病的感染和传播非常重要。
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