Self-Powered Electrospun Composite Nanofiber Membrane for Highly Efficient Air Filtration.
air filtration
electrospun nanofiber
electrostatic adsorption
self-powered membrane
triboelectric effect
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
29 Aug 2020
29 Aug 2020
Historique:
received:
29
07
2020
revised:
21
08
2020
accepted:
27
08
2020
entrez:
3
9
2020
pubmed:
3
9
2020
medline:
3
9
2020
Statut:
epublish
Résumé
Highly efficient air filtration with low pressure drop is the key to air purification. In this work, a self-powered electrospun nanofiber membrane with an electrostatic adsorption effect was prepared to improve the filtration efficiency of micro/nano particles. The composite membrane was comprised of polyvinyl chloride (PVC) nanofibers and polyamide-6 (PA6) nanofibers. The triboelectric effect between the two adjacent nanofiber membranes generated electrostatic charges under the action of air vibration, by which the electrostatic adsorption with the same pressure drop was enhanced. The electrostatic voltage on the self-powered nanofiber membrane was 257.1 mV when the flow velocity was 0.1 m/s. For sodium chloride (NaCl) aerosol particles with a diameter of 0.3 μm, the removal efficiency of the self-powered composite nanofiber membrane was 98.75% and the pressure drop was 67.5 Pa, which showed a higher quality factor than the membrane without electrostatic charges. This work provides an effective way to improve the filtration performance of air filter membranes.
Identifiants
pubmed: 32872502
pii: nano10091706
doi: 10.3390/nano10091706
pmc: PMC7557972
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : National Natural Science Foundation of China
ID : 51805460
Organisme : Science and Technology Planning Project of Fujian Province
ID : 2019H0038
Organisme : Natural Science Foundation of Guangdong Province
ID : 2018A030313522
Organisme : Science and Technology Planning Project of Shenzhen Municipality
ID : JCYJ20180306173000073
Organisme : Xiamen Science and Technology Planning Project
ID : 3502Z2019015
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