作者
Fanxuan Xia, Zhuo Chen, Yilun Gao, Enze Tian, Jinhan Mo
发表日期
2024/3/4
期刊
ACS ES&T Engineering
卷号
4
期号
4
页码范围
987-994
出版商
American Chemical Society
简介
Maintaining indoor air quality is essential for human health, and the threat posed by bioaerosols emphasizes efficient capture and inactivation technologies in ventilation systems. However, existing technologies struggle to capture and inactivate bioaerosols simultaneously with low air resistance and integrated technologies make them inconvenient in practical applications. To address this challenge, we developed a dual-zone electrostatically actuated filter in which airborne bacteria are first charged by ions generated in the charging zone and then captured by the polarized fibers and inactivated in the electrostatic field of the polarizing zone. Benefiting from the enhanced electrostatic force, the capture efficiencies for Escherichia coli (Gram-negative) and Staphylococcus epidermidis (Gram-positive) aerosols of 0.3–0.5 μm diameter increased from ∼25.4 to ∼98.4% at 0.5 m/s filtering velocity while the air resistance …
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