Bioaerosols, particulate matter and volatile organic compounds (VOCs) are major indoor air pollutants. Air purification systems based on filtration and adsorption can effectively capture inorganic particulate matter and remove VOCs. However, microorganisms in bioaerosols can remain viable on air filtration media, and further grow to colonize the media, thus decreasing air filtration efficiency and posing the risk of secondary pollution. Many attempts have been made to combine conventional disinfection technologies including photocatalysis, plasma and silver nanoparticles with filtration and adsorption processes for air purification and disinfection, complicated system design and increased air flow resistance are main concerns. This work develops a new air purification and disinfection technology based on supported ionic liquids. The optimized air purification and disinfection systems can directly inactivate bioaerosols (e.g., bacteria, viruses) and remove molecular pollutants (e.g., VOCs and malodors). New ionic liquid-based systems also exhibited enhanced filtration efficiencies for inorganic particulate matter without increased air flow resistance. This work provides a cost-effective solution to complex air pollutants.

Ionic liquid-based air purification and disinfection systems

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.