Li Hsing-Wang, Wu Chang-Yu, Tepper Fred, Lee Jin-Hwa, Lee Christiana Nicole
Department of Environmental Engineering Sciences, University of Florida, P.O. Box 116450, Gainesville, FL 32611-6450, USA.
Argonide Corporation, Sanford, FL 32771, USA.
J Aerosol Sci. 2009 Jan;40(1):65-71. doi: 10.1016/j.jaerosci.2008.09.003. Epub 2008 Oct 7.
Nanomaterial, due to its unique physical, chemical and biological properties compared to its bulk counterparts, has the potential to provide a product superior to its bulk predecessor. In this study, a novel alumina nanofiber filter was assessed for its removal and retention capability for MS2 aerosol. Its physical removal efficiency in the 10-400 nm range was 94.35%, while its viable removal efficiency was 98.87%, which was slightly lower than three conventional HEPA filters tested. However, its pressure drop was much lower than HEPA filters, yielding a higher filter quality than HEPA filters. The average extracted fraction from the nanofiber filter was 8.64×10±7.00×10, which is three orders lower than other HEPA filters, demonstrating that the viruses were effectively retained in the nanofiber filter. Furthermore, the performance of the nanofiber filter showed no dependence on relative humidity. In conclusion, this novel alumina nanofiber filter presents advantageous potential for removal and retention of viral aerosol agents.
与块状材料相比，纳米材料具有独特的物理、化学和生物学特性，有潜力提供比其块状前身更优质的产品。在本研究中，对一种新型氧化铝纳米纤维过滤器去除和截留MS2气溶胶的能力进行了评估。其在10 - 400纳米范围内的物理去除效率为94.35%，而其活菌去除效率为98.87%，略低于测试的三种传统高效空气过滤器。然而，其压降远低于高效空气过滤器，过滤器质量高于高效空气过滤器。纳米纤维过滤器的平均提取率为8.64×10±7.00×10，比其他高效空气过滤器低三个数量级，表明病毒被有效截留于纳米纤维过滤器中。此外，纳米纤维过滤器的性能不依赖于相对湿度。总之，这种新型氧化铝纳米纤维过滤器在去除和截留病毒气溶胶制剂方面具有潜在优势
