Photoinduced hydrophilicity of TiO2 film as the effect of H 2O2 addition

Y. H. Tseng; C. S. Kuo; C. H. Huang; T. Hirakawa; N. Negishi; Hsun-Ling Bai

doi:10.1049/mnl.2010.0003

Photoinduced hydrophilicity of TiO₂ film as the effect of H ₂O₂ addition

Y. H. Tseng^*, C. S. Kuo, C. H. Huang, T. Hirakawa, N. Negishi, Hsun-Ling Bai

^*Corresponding author for this work

Institute of Environmental Engineering

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

6 Scopus citations

Abstract

TiO₂ thin film photocatalysts coated onto glass plates were prepared by thermal decomposition of tetraisopropyl orthotitanate with a dip-coating process. In this Letter, the mechanism for photoinduced hydrophilicity of TiO₂ film is clarified by adding the extra H ₂O₂ on TiO₂ surface. Results show that the photoinduced hydrophilicity of TiO₂ film is inhibited with the presence of H₂O₂. The amount of Ti-OH bonds on the surface oppositely increased by the addition of H₂O₂. It indicates the photoinduced hydrophilicity of TiO₂ results from surface oxygen vacancy, not Ti-OH bonds.

Original language	English
Pages (from-to)	81-84
Number of pages	4
Journal	Micro and Nano Letters
Volume	5
Issue number	2
DOIs	https://doi.org/10.1049/mnl.2010.0003
State	Published - 8 Sep 2010

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title = "Photoinduced hydrophilicity of TiO2 film as the effect of H 2O2 addition",

abstract = "TiO2 thin film photocatalysts coated onto glass plates were prepared by thermal decomposition of tetraisopropyl orthotitanate with a dip-coating process. In this Letter, the mechanism for photoinduced hydrophilicity of TiO2 film is clarified by adding the extra H 2O2 on TiO2 surface. Results show that the photoinduced hydrophilicity of TiO2 film is inhibited with the presence of H2O2. The amount of Ti-OH bonds on the surface oppositely increased by the addition of H2O2. It indicates the photoinduced hydrophilicity of TiO2 results from surface oxygen vacancy, not Ti-OH bonds.",

author = "Tseng, {Y. H.} and Kuo, {C. S.} and Huang, {C. H.} and T. Hirakawa and N. Negishi and Hsun-Ling Bai",

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AU - Tseng, Y. H.

AU - Kuo, C. S.

AU - Huang, C. H.

AU - Hirakawa, T.

AU - Negishi, N.

AU - Bai, Hsun-Ling

PY - 2010/9/8

Y1 - 2010/9/8

N2 - TiO2 thin film photocatalysts coated onto glass plates were prepared by thermal decomposition of tetraisopropyl orthotitanate with a dip-coating process. In this Letter, the mechanism for photoinduced hydrophilicity of TiO2 film is clarified by adding the extra H 2O2 on TiO2 surface. Results show that the photoinduced hydrophilicity of TiO2 film is inhibited with the presence of H2O2. The amount of Ti-OH bonds on the surface oppositely increased by the addition of H2O2. It indicates the photoinduced hydrophilicity of TiO2 results from surface oxygen vacancy, not Ti-OH bonds.

AB - TiO2 thin film photocatalysts coated onto glass plates were prepared by thermal decomposition of tetraisopropyl orthotitanate with a dip-coating process. In this Letter, the mechanism for photoinduced hydrophilicity of TiO2 film is clarified by adding the extra H 2O2 on TiO2 surface. Results show that the photoinduced hydrophilicity of TiO2 film is inhibited with the presence of H2O2. The amount of Ti-OH bonds on the surface oppositely increased by the addition of H2O2. It indicates the photoinduced hydrophilicity of TiO2 results from surface oxygen vacancy, not Ti-OH bonds.

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DO - 10.1049/mnl.2010.0003

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VL - 5

SP - 81

EP - 84

JO - Micro and Nano Letters

JF - Micro and Nano Letters

IS - 2

ER -

Photoinduced hydrophilicity of TiO₂ film as the effect of H ₂O₂ addition

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