Persistent deNOx Ability of CaAl2O4:(Eu, Nd)/TiO2-xNy Luminescent Photocatalyst

Huihui Li; Shu Yin; Tsugio Sato

doi:10.1007/s11671-010-9750-7

Persistent deNOx Ability of CaAl₂O₄:(Eu, Nd)/TiO_2-xN_y Luminescent Photocatalyst

Huihui Li, Shu Yin, Tsugio Sato

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

CaAl₂O₄:(Eu, Nd)/TiO_2-xN_y composite luminescent photocatalyst was successfully synthesized by a simple planetary ball milling process. Improvement of photocatalytic deNOx ability of TiO_2-xN_y, together with the persistent photocatalytic activity for the decomposition of NO after turning off the light were realized, by coupling TiO_2-xN_y with long afterglow phosphor, CaAl₂O₄:(Eu, Nd). The novel persistent photocatalytic behavior was related to the overlap between the absorption wavelength of TiO_2-xN_y and the emission wavelength of the CaAl₂O₄:(Eu, Nd). It was found that CaAl₂O₄:(Eu, Nd)/TiO_2-xN_y composites provided the luminescence to persist photocatalytic reaction for more than 3 h after turning off the light.

Original language	English
Article number	5
Pages (from-to)	1-4
Number of pages	4
Journal	Nanoscale Research Letters
Volume	6
Issue number	1
DOIs	https://doi.org/10.1007/s11671-010-9750-7
Publication status	Published - 2011 Jan

Keywords

Composite
Luminescent photocatalyst
deNOx

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

Access to Document

10.1007/s11671-010-9750-7

Cite this

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title = "Persistent deNOx Ability of CaAl2O4:(Eu, Nd)/TiO2-xNy Luminescent Photocatalyst",

abstract = "CaAl2O4:(Eu, Nd)/TiO2-xNy composite luminescent photocatalyst was successfully synthesized by a simple planetary ball milling process. Improvement of photocatalytic deNOx ability of TiO2-xNy, together with the persistent photocatalytic activity for the decomposition of NO after turning off the light were realized, by coupling TiO2-xNy with long afterglow phosphor, CaAl2O4:(Eu, Nd). The novel persistent photocatalytic behavior was related to the overlap between the absorption wavelength of TiO2-xNy and the emission wavelength of the CaAl2O4:(Eu, Nd). It was found that CaAl2O4:(Eu, Nd)/TiO2-xNy composites provided the luminescence to persist photocatalytic reaction for more than 3 h after turning off the light.",

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AB - CaAl2O4:(Eu, Nd)/TiO2-xNy composite luminescent photocatalyst was successfully synthesized by a simple planetary ball milling process. Improvement of photocatalytic deNOx ability of TiO2-xNy, together with the persistent photocatalytic activity for the decomposition of NO after turning off the light were realized, by coupling TiO2-xNy with long afterglow phosphor, CaAl2O4:(Eu, Nd). The novel persistent photocatalytic behavior was related to the overlap between the absorption wavelength of TiO2-xNy and the emission wavelength of the CaAl2O4:(Eu, Nd). It was found that CaAl2O4:(Eu, Nd)/TiO2-xNy composites provided the luminescence to persist photocatalytic reaction for more than 3 h after turning off the light.

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