Novel Photocatalytic deNOx over Sr4Al14O25:(Eu, Dy)/SrTi1-xCrxO3-y Catalysts

Huihui Li; Shu Yin; Tsugio Sato

doi:10.14853/pcersj.2011F.0.76.0

24th Fall Meeting of The Ceramic Society of Japan

Session ID : 1F22

DOI https://doi.org/10.14853/pcersj.2011F.0.76.0

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Host: The Ceramic Society of Japan

Novel Photocatalytic deNO_x over Sr₄Al₁₄O₂₅:(Eu, Dy)/SrTi_1-xCr_xO_3-y Catalysts

*Huihui Li, Shu Yin, Tsugio Sato

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Keywords: Photocatalytic, Persistent, composite

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Abstract

The new photocatalysts have been obtained by coupling SrTi_1-xCr_xO_3-y with Sr₄Al₁₄O₂₅:(Eu, Dy). Sr₄Al₁₄O₂₅:(Eu, Dy) with eye-visible persistent luminescence can be used as a light source after a promising coupling. The obtained Sr₄Al₁₄O₂₅:(Eu, Dy)/SrTi_1-xCr_xO_3-y catalysts were found to persistently reduce NO in the dark after turning off the solar light irradiation, while the photocatalytic activity of unsupported SrTi_1-xCr_xO_3-y immediately disappeared.

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