Observation of visible light-driven water splitting by TiO2 crystallized glass

Kazuki Yoshida, Hiroshi Takahashi, Hirokazu Masai, Nobuaki Terakado, Yoshihiro Takahashi, Takumi Fujiwara, Hideki Kato, Masato Kakihana

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Study on visible light response of photocatalytic materials is very important research area for future energy society. Generally, in conventional photocatalysts, visible light response is provided by defect introduction. This phenomenon is based on formation of trap level between valence and conduction band. In our previous report, we have already succeeded in observing the photocatalytic activity of TiO2 crystallized glass. Since glass-based material is suitable for industrial use, crystallized glass is expected to be a novel bulk photocatalyst with high productivity if we provide visible light response ability to TiO2 crystallized glass. In this study, we tried the defect introduction to TiO2 crystallized glass and investigated the photocatalytic activity under visible light irradiation. As a result, we have demonstrated water splitting by TiO2 crystallized glass with Ti3+ defect under visible light irradiation for the first time.

Original languageEnglish
Pages (from-to)22055-22058
Number of pages4
JournalInternational Journal of Hydrogen Energy
Issue number47
Publication statusPublished - 2016 Dec 21


  • Crystallized glass
  • Defect introduction
  • Photocatalysis
  • Visible light response


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