Bottom-Up Synthesized All-Thermal-Catalyst Aerogels for Heat-Regenerative Air Filtration
Jung, Sung Mi
Hrdina, Amy I. H.
Wolf, Martin J.
Luo, Shao-Xiong Lennon
Welsch, Roy E.
Wang, Evelyn N.
KAUST DepartmentPhysical Science and Engineering (PSE) Division
Water Desalination and Reuse Research Center (WDRC)
Material Science and Engineering Program
Online Publication Date2021-09-20
Print Publication Date2021-10-13
Embargo End Date2022-09-20
Permanent link to this recordhttp://hdl.handle.net/10754/672050
MetadataShow full item record
AbstractAirborne particular matter (PM) pollution is an increasing global issue and alternative sources of filter fibers are now an area of significant focus. Compared with relatively mature hazardous gas treatments, state of the art high-efficiency PM filters still lack thermal decomposition ability for organic PM pollutants, such as soot from coal-fired power plants and waste-combustion incinerators, resulting in frequent replacement, high cost, and second-hand pollution. In this manuscript, we propose a bottom-up synthesis method to make the first all-thermal-catalyst air filter (ATCAF). Self-assembled from ∼50 nm diameter TiO<sub>2</sub> fibers, ATCAF could not only capture the combustion-generated PM pollutants with >99.999% efficiency but also catalyze the complete decomposition of the as-captured hydrocarbon pollutants at high temperature. It has the potential of in situ eliminating the PM pollutants from burning of hydrocarbon materials leveraging the burning heat.
CitationJi, X., Zhao, J., Jung, S. M., Hrdina, A. I. H., Wolf, M. J., Yang, X., … Kong, J. (2021). Bottom-Up Synthesized All-Thermal-Catalyst Aerogels for Heat-Regenerative Air Filtration. Nano Letters. doi:10.1021/acs.nanolett.1c02593
PublisherAmerican Chemical Society (ACS)
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