Preparation and properties of titania-Cs2.5H0.5PW12O40 hybrid films

Akira Nakajima; Shunsuke Matsui; Sayaka Yanagida; Yoshikazu Kameshima; Kiyoshi Okada

doi:10.1016/j.surfcoat.2008.10.010

Preparation and properties of titania-Cs_2.5H_0.5PW₁₂O₄₀ hybrid films

Akira Nakajima, Shunsuke Matsui, Sayaka Yanagida, Yoshikazu Kameshima, Kiyoshi Okada

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

3 Citations (Scopus)

Abstract

Using continuous coating with Si-alkoxide as a binder, Cs_2.5H_0.5PW₁₂O₄₀ (Cs2.5) powder was prepared and immobilized onto a Pyrex glass plate. The Cs2.5 coating possessed an acid site on the film surface. Translucent TiO₂-Cs2.5 hybrid films were prepared by laminating TiO₂ films with holes on the Cs2.5 coating using phase-separation of alkoxide. Photocatalytic decomposition of 1,4-dioxane in water revealed that the holes serve as adsorption fields for ethylene glycol diformate, an intermediate with poor affinity to TiO₂. The TiO₂-Cs2.5 hybrid films produced by this process are candidates for purification of water containing several chemicals with a slow decomposition rate in photocatalysis.

Original language	English
Pages (from-to)	1133-1137
Number of pages	5
Journal	Surface and Coatings Technology
Volume	203
Issue number	9
DOIs	https://doi.org/10.1016/j.surfcoat.2008.10.010
Publication status	Published - Jan 25 2009
Externally published	Yes

Keywords

1,4-dioxane
Cs2.5
Phase separation
Photocatalyst
TiO

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.surfcoat.2008.10.010

Cite this

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title = "Preparation and properties of titania-Cs2.5H0.5PW12O40 hybrid films",

abstract = "Using continuous coating with Si-alkoxide as a binder, Cs2.5H0.5PW12O40 (Cs2.5) powder was prepared and immobilized onto a Pyrex glass plate. The Cs2.5 coating possessed an acid site on the film surface. Translucent TiO2-Cs2.5 hybrid films were prepared by laminating TiO2 films with holes on the Cs2.5 coating using phase-separation of alkoxide. Photocatalytic decomposition of 1,4-dioxane in water revealed that the holes serve as adsorption fields for ethylene glycol diformate, an intermediate with poor affinity to TiO2. The TiO2-Cs2.5 hybrid films produced by this process are candidates for purification of water containing several chemicals with a slow decomposition rate in photocatalysis.",

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author = "Akira Nakajima and Shunsuke Matsui and Sayaka Yanagida and Yoshikazu Kameshima and Kiyoshi Okada",

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AU - Nakajima, Akira

AU - Matsui, Shunsuke

AU - Yanagida, Sayaka

AU - Kameshima, Yoshikazu

AU - Okada, Kiyoshi

PY - 2009/1/25

Y1 - 2009/1/25

N2 - Using continuous coating with Si-alkoxide as a binder, Cs2.5H0.5PW12O40 (Cs2.5) powder was prepared and immobilized onto a Pyrex glass plate. The Cs2.5 coating possessed an acid site on the film surface. Translucent TiO2-Cs2.5 hybrid films were prepared by laminating TiO2 films with holes on the Cs2.5 coating using phase-separation of alkoxide. Photocatalytic decomposition of 1,4-dioxane in water revealed that the holes serve as adsorption fields for ethylene glycol diformate, an intermediate with poor affinity to TiO2. The TiO2-Cs2.5 hybrid films produced by this process are candidates for purification of water containing several chemicals with a slow decomposition rate in photocatalysis.

AB - Using continuous coating with Si-alkoxide as a binder, Cs2.5H0.5PW12O40 (Cs2.5) powder was prepared and immobilized onto a Pyrex glass plate. The Cs2.5 coating possessed an acid site on the film surface. Translucent TiO2-Cs2.5 hybrid films were prepared by laminating TiO2 films with holes on the Cs2.5 coating using phase-separation of alkoxide. Photocatalytic decomposition of 1,4-dioxane in water revealed that the holes serve as adsorption fields for ethylene glycol diformate, an intermediate with poor affinity to TiO2. The TiO2-Cs2.5 hybrid films produced by this process are candidates for purification of water containing several chemicals with a slow decomposition rate in photocatalysis.

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