Journal
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
Volume 28, Issue 2, Pages 99-112Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2018.01.017
Keywords
Triboelectric nanogenerator; Power source; Particulate matter; Air cleaning; Nanofiber filter
Funding
- National Key R D Project [2016YFA0202704]
- National Natural Science Foundation of China [51432005, 5151101243, 51561145021]
- Beijing Municipal Science & Technology Commission [Y3993113DF]
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Particles matters (PMs) have raised serious concerns due to their great impact on human health. Coupling triboelectric effect and electrostatic induction, triboelectric nanogenerator (TENG) has demonstrated as a practical sustainable power source for portable devices. The characteristics of TENG, such as high electric field and high output power, make it a promising technology in air cleaning applications. Here, the mechanism of the TENG and its application in self-powered air cleaning technologies are reviewed. Using the TENG as a voltage source, a self-powered air cleaning system for removing SO2 and PMs is developed; and the removal efficiency of nanofiber filters is greatly enhanced due to electrostatic attraction. More importantly, the technology is not only most effective for removing nano-scale particles that cannot be effectively filtered using conventional fiber-film filters, but also produces no ozone emission. Besides being an independent power supply, a vibration TENG based triboelectric filter is designed to effectively capture the PMs from automobile exhaust fumes. Hence, the TENG demonstrates its great potential in self-powered air cleaning applications.
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