Revolutionizing Airborne Virus Defense: Electromagnetic MXene-Coated Air Filtration for Superior Aerosol Viral Removal
Document Type
Article
Publication Date
2-28-2024
Abstract
The COVID-19 pandemic sparked public health concerns about the transmission of airborne viruses. Current methods mainly capture pathogens without inactivation, leading to potential secondary pollution. Herein, we evaluated the inactivation performance of a model viral species (MS2) in simulated bioaerosol by an electromagnetically enhanced air filtration system under a 300 kHz electromagnetic induction field. A nonwoven fabric filter was coated with a 2D catalyst, MXene (Ti3C2Tx), at a coating density of 4.56 mg·cm-2 to absorb electromagnetic irradiation and produce local heating and electromagnetic field for microbial inactivation. The results showed that the MXene-coated air filter significantly enhanced the viral removal efficiency by achieving a log removal of 3.4 ± 0.15 under an electromagnetic power density of 369 W·cm-2. By contrast, the pristine filter without catalyst coating only garnered a log removal of 0.3 ± 0.04. Though the primary antimicrobial mechanism is the local heating as indicated by the elevated surface temperature of 72.2 ± 4 °C under the electromagnetic field, additional nonthermal effects (e.g., dielectrophoresis) on enhanced viral capture during electromagnetically enhanced filtration were investigated by COMSOL simulation to delineate the potential transmission trajectories of bioaerosol. The results provide unique insights into the mechanisms of pathogen control and thus promote alternative solutions for preventing the transmission of airborne pathogens.
Identifier
85186067735 (Scopus)
Publication Title
ACS Applied Materials and Interfaces
External Full Text Location
https://doi.org/10.1021/acsami.3c18227
e-ISSN
19448252
ISSN
19448244
PubMed ID
38363186
First Page
10148
Last Page
10157
Issue
8
Volume
16
Grant
2025374
Fund Ref
National Science Foundation
Recommended Citation
Liu, Fangzhou; Ma, Qingquan; Sabuj, Md Mohidul Alam; Yen, Shih Hsiang; Govindan, Dheeban; Gao, Jianan; Zhao, Mengqiang; Elimelech, Menachem; and Zhang, Wen, "Revolutionizing Airborne Virus Defense: Electromagnetic MXene-Coated Air Filtration for Superior Aerosol Viral Removal" (2024). Faculty Publications. 624.
https://digitalcommons.njit.edu/fac_pubs/624
