4.4 Article

Pt@g-C3N4/CeO2 photocatalyst for the remediation of low concentration NOx at room temperature

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ELSEVIER SCIENCE INC
DOI: 10.1016/j.pnsc.2020.03.003

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Pt@g-C3N4/CeO2; Photocatalysis; DeNOx; Room temperature

资金

  1. National Key Research and Development Program of China [2016YFC0700902-6]
  2. Strategic Emerging Industry Development Funds of Shenzhen [JCYJ20160301150948119]

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Pt@g-C3N4/CeO2 photocatalyst was prepared by calcination of g-C3N4/CeO2 mixture followed by impregnating Pt. Under the irradiation of visible light with the presence of water vapor at room temperature, Pt@g-C3N4/CeO2 showed significant performance for remediation of NOx. The deNO(x) mechanism was studied by modified in-situ FTIR. The results proved that NO was prone to adsorb on the surface of Pt@CeO2 and oxidized to nitrite for storage. Then, the photoinduced hydrogen on Pt@g-C3N4 component could diffuse into the vicinity of nitrite through the spillover effect of Pt and reacted with nitride to produce N-2 and H2O.

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