Photocatalytic WO3/TiO2 nanoparticles working under visible light

Seung Yong Chai; Yong Joo Kim; Wan In Lee

doi:10.1007/s10832-006-9073-3

Photocatalytic WO₃/TiO₂ nanoparticles working under visible light

Seung Yong Chai, Yong Joo Kim, Wan In Lee

Inha University

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

98 Scopus citations

Abstract

WO₃/TiO₂ was prepared by modifying the surface of TiO₂ with clusters of crystallized WO₃. Previously, we have reported that the TiO₂ covered with the monolayer of WO ₃ shows greatly enhanced photocatalytic activity under UV light in decomposing VOCs. Here we report that the WO₃/TiO₂ can also be activated by visible light in the photocatalytic decomposition of gaseous 2-propanol. The structure of WO₃/TiO₂ was examined by X-ray diffraction (XRD), TEM, UV-Visible and Raman spectra. The samples with 10 mol% of WO₃ annealed at 700°C provide the optimum photocatalytic efficiency in visible range. We also suggest the mechanism for the WO₃/TiO₂ working under visible light.

Original language	English
Pages (from-to)	909-912
Number of pages	4
Journal	Journal of Electroceramics
Volume	17
Issue number	2-4
DOIs	https://doi.org/10.1007/s10832-006-9073-3
State	Published - Dec 2006

Bibliographical note

Funding Information:
Acknowledgment This work has been supported by the Ministry of Environment, Republic of Korea (Project No. 022-061-026).

Keywords

Nanoparticle
Photocatalyst
TiO
Visible light
WO/TiO

Access to Document

10.1007/s10832-006-9073-3

Cite this

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abstract = "WO3/TiO2 was prepared by modifying the surface of TiO2 with clusters of crystallized WO3. Previously, we have reported that the TiO2 covered with the monolayer of WO 3 shows greatly enhanced photocatalytic activity under UV light in decomposing VOCs. Here we report that the WO3/TiO2 can also be activated by visible light in the photocatalytic decomposition of gaseous 2-propanol. The structure of WO3/TiO2 was examined by X-ray diffraction (XRD), TEM, UV-Visible and Raman spectra. The samples with 10 mol% of WO3 annealed at 700°C provide the optimum photocatalytic efficiency in visible range. We also suggest the mechanism for the WO3/TiO2 working under visible light.",

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author = "Chai, {Seung Yong} and Kim, {Yong Joo} and Lee, {Wan In}",

note = "Funding Information: Acknowledgment This work has been supported by the Ministry of Environment, Republic of Korea (Project No. 022-061-026).",

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AU - Chai, Seung Yong

AU - Kim, Yong Joo

AU - Lee, Wan In

N1 - Funding Information: Acknowledgment This work has been supported by the Ministry of Environment, Republic of Korea (Project No. 022-061-026).

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AB - WO3/TiO2 was prepared by modifying the surface of TiO2 with clusters of crystallized WO3. Previously, we have reported that the TiO2 covered with the monolayer of WO 3 shows greatly enhanced photocatalytic activity under UV light in decomposing VOCs. Here we report that the WO3/TiO2 can also be activated by visible light in the photocatalytic decomposition of gaseous 2-propanol. The structure of WO3/TiO2 was examined by X-ray diffraction (XRD), TEM, UV-Visible and Raman spectra. The samples with 10 mol% of WO3 annealed at 700°C provide the optimum photocatalytic efficiency in visible range. We also suggest the mechanism for the WO3/TiO2 working under visible light.

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