Journal
ACS NANO
Volume 11, Issue 6, Pages 6211-6217Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.7b02321
Keywords
triboelectric nanogenerator; electrospinning; polyimide nanofiber; particulate matter; air filter
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Funding
- thousands talents program for the pioneer researcher and his innovation team
- National Key R & D Project from Minister of Science and Technology [2016YFA0202704]
- National Natural Science Foundation of China [51432005, 51608039, 5151101243, 51561145021]
- Natural Science Foundation of Beijing, China [4154090]
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We developed a high-efficiency rotating triboelectric nanogenerator (R-TENG) enhanced polyimide (PI) nanofiber air filter for particulate matter (PM) removal in ambient atmosphere. The PI electrospinning nanofiber film exhibited high removal efficiency for the PM particles that have diameters larger than 0.5 mu m. When the R-TENG is connected, the removal efficiency of the filter is enhanced, especially when the particle diameters of the PM are smaller than 100 nm. The highest removal efficiency is 90.6% for particles with a diameter of 33.4 nm and the highest efficiency enhancement reaches 207.8% at the diameter of 76.4 nm where the removal efficiency enhanced from 27.1% to 83.6%. This technology with zero ozone release and low pressure drop offers an approach for air cleaning and haze treatment.
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