期刊
ACS APPLIED MATERIALS & INTERFACES
卷 14, 期 16, 页码 18989-19001出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.2c04700
关键词
electrospinning; fluffy nanofiber membrane; air filtration; antibacterial activity; coronavirus disease 2019
资金
- National Natural Science Foundation of China [51805460]
- Fujian Provincial Department of Science and Technology [2020H6003, 2019H0038, 2021J011196]
An innovative electrospinning system was used to fabricate a fluffy nanofibrous membrane containing ultrafine nanofibers and antibacterial agents. The membrane showed high filtration efficiency and antibacterial performance, which could be promising for personal protection.
Antibacterial air filtration membranes are essential for personal protection during the pandemic of coronavirus disease 2019 (COVID-19). However, high-efficiency filtration with low pressure drop and effective antibiosis is difficult to achieve. To solve this problem, an innovative electrospinning system with low binding energy and high conductivity was built to enhance the jet splitting, and a fluffy nanofibrous membrane containing numerous ultrafine nanofibers and large quantities of antibacterial agents was achieved, which was fabricated by electrospinning polyamide 6 (PA6), poly(vinyl pyrrolidone) (PVP), chitosan (CS), and curcumin (Cur). The filtration efficiency for 0.3 mu m NaCl particles was 99.83%, the pressure drop was 54 Pa, and the quality factor (QF) was up to 0.118 Pa-1. CS and Cur synergistically enhanced the antibacterial performance; the bacteriostatic rates against Escherichia coli and Staphylococcus aureus were 99.5 and 98.9%, respectively. This work will largely promote the application of natural antibacterial agents in the development of high-efficiency, low-resistance air filters for personal protection by manufacturing ultrafine nanofibers with enhanced antibiosis.
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