Details
| Original language | English |
|---|---|
| Pages (from-to) | 162-169 |
| Number of pages | 8 |
| Journal | Journal of membrane science |
| Volume | 586 |
| Early online date | 25 May 2019 |
| Publication status | Published - 15 Sept 2019 |
Abstract
Highly effective air filters are needed because of the increasing harm caused by air particulate matter pollution. Herein, two-dimensional titanium carbide Ti3C2Tx MXene nanosheets with active surface-terminating groups (O, OH and F) were used to modify the polyacrylonitrile (PAN) nanofiber filters to strengthen their interaction force with PM2.5. These forces were measured quantitatively through the force-distance curve-based AFM showing that the MXene modification of the PAN fiber induces three times larger interaction forces than before. The obtained filters show high PM2.5 removal efficiency of ∼99.7% with a low pressure drop of ∼42 Pa. Moreover, the presence of MXene nanosheets strongly inhibits the propagation of bacteria (e.g. E. coli and S. aureus) in the filters. Such filters can significantly improve air quality, especially in public places such as hospitals.
Keywords
- Air purification membrane, Antibacterial, MXene nanosheets, PM2.5, Polyacrylonitrile nanofibers
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Materials Science(all)
- Chemistry(all)
- Physical and Theoretical Chemistry
- Chemical Engineering(all)
- Filtration and Separation
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In: Journal of membrane science, Vol. 586, 15.09.2019, p. 162-169.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Titanium carbide Ti3C2Tx (MXene) enhanced PAN nanofiber membrane for air purification
AU - Gao, Xue
AU - Li, Zhong-Kun
AU - Xue, Jian
AU - Qian, Yong
AU - Zhang, Li-Zhi
AU - Caro, Jürgen
AU - Wang, Haihui
N1 - Funding Information: We gratefully acknowledge the funding from by the Natural Science Foundation of China ( 21706076 , 21536005 , 51621001 ), and the Natural Science Foundation of Guangdong Province ( 2014A030312007 ), Guangzhou Technology Project ( 201804010210 ), State Key Laboratory of Pulp and Paper Engineering ( 201835 ).
PY - 2019/9/15
Y1 - 2019/9/15
N2 - Highly effective air filters are needed because of the increasing harm caused by air particulate matter pollution. Herein, two-dimensional titanium carbide Ti3C2Tx MXene nanosheets with active surface-terminating groups (O, OH and F) were used to modify the polyacrylonitrile (PAN) nanofiber filters to strengthen their interaction force with PM2.5. These forces were measured quantitatively through the force-distance curve-based AFM showing that the MXene modification of the PAN fiber induces three times larger interaction forces than before. The obtained filters show high PM2.5 removal efficiency of ∼99.7% with a low pressure drop of ∼42 Pa. Moreover, the presence of MXene nanosheets strongly inhibits the propagation of bacteria (e.g. E. coli and S. aureus) in the filters. Such filters can significantly improve air quality, especially in public places such as hospitals.
AB - Highly effective air filters are needed because of the increasing harm caused by air particulate matter pollution. Herein, two-dimensional titanium carbide Ti3C2Tx MXene nanosheets with active surface-terminating groups (O, OH and F) were used to modify the polyacrylonitrile (PAN) nanofiber filters to strengthen their interaction force with PM2.5. These forces were measured quantitatively through the force-distance curve-based AFM showing that the MXene modification of the PAN fiber induces three times larger interaction forces than before. The obtained filters show high PM2.5 removal efficiency of ∼99.7% with a low pressure drop of ∼42 Pa. Moreover, the presence of MXene nanosheets strongly inhibits the propagation of bacteria (e.g. E. coli and S. aureus) in the filters. Such filters can significantly improve air quality, especially in public places such as hospitals.
KW - Air purification membrane
KW - Antibacterial
KW - MXene nanosheets
KW - PM2.5
KW - Polyacrylonitrile nanofibers
UR - http://www.scopus.com/inward/record.url?scp=85066233722&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2019.05.058
DO - 10.1016/j.memsci.2019.05.058
M3 - Article
AN - SCOPUS:85066233722
VL - 586
SP - 162
EP - 169
JO - Journal of membrane science
JF - Journal of membrane science
SN - 0376-7388
ER -