Gelatin/ß-Cyclodextrin Bio-Nanofibers as respiratory filter media for filtration of aerosols and volatile organic compounds at low air resistance.
J Hazard Mater
; 403: 123841, 2021 02 05.
Article
in English
| MEDLINE | ID: covidwho-739913
ABSTRACT
Air pollution is a universal concern. The suspended solid/liquid particles in the air and volatile organic compounds (VOCs) are ubiquitous. Synthetic polymer-based air filter media not only has disposal issues but also is a source of air and water pollution at the end of their life cycle. It has been a challenge to filter both particulate matter and VOC pollutants by a common biodegradable filter media having low air resistance. This study reports gelatin/ß-cyclodextrin composite nanofiber mats with dual function air filtration ability at reduced air resistance (148 Pa) and low basis weight (1 g/m²). Gelatin/ß-cyclodextrin nanofibers captured aerosols (0.3-5 µm) with < 95% filtration efficiency at 0.029/Pa quality factor. They adsorbed great amount of xylene (287 mg/g), benzene (242 mg/g), and formaldehyde (0.75 mg/g) VOCs. VOC adsorption of gelatin/ß-cyclodextrin nanofibers is found several times higher than a commercial face mask and pristine powder samples. This study provides a solution for a 'green' dual function respiratory air filtration at low resistance. Gelatin/ß-cyclodextrin nanofibers also have the potential to filter nano-sized viruses.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Beta-Cyclodextrins
/
Air Pollutants
/
Volatile Organic Compounds
/
Nanofibers
Topics:
Variants
Language:
English
Journal:
J Hazard Mater
Journal subject:
Environmental Health
Year:
2021
Document Type:
Article
Similar
MEDLINE
...
LILACS
LIS