Fabrication of an anti-viral air filter with SiO2-Ag nanoparticles and performance evaluation in a continuous airflow condition

Yun Haeng Joe, Kyoungja Woo, Jungho Hwang

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

In this study, SiO2 nanoparticles surface coated with Ag nanoparticles (SA particles) were fabricated to coat a medium air filter. The pressure drop, filtration efficiency, and anti-viral ability of the filter were evaluated against aerosolized bacteriophage MS2 in a continuous air flow condition. A mathematical approach was developed to measure the anti-viral ability of the filter with various virus deposition times. Moreover, two quality factors based on the anti-viral ability of the filter, and a traditional quality factor based on filtration efficiency, were calculated. The filtration efficiency and pressure drop increased with decreasing media velocity and with increasing SA particle coating level. The anti-viral efficiency also increased with increasing SA particle coating level, and decreased by with increasing virus deposition time. Consequently, SA particle coating on a filter does not have significant effects on filtration quality, and there is an optimal coating level to produce the highest anti-viral quality.

Original languageEnglish
Pages (from-to)356-363
Number of pages8
JournalJournal of Hazardous Materials
Volume280
DOIs
Publication statusPublished - 2014 Sep 15

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

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