The optical absorption and hydrogen production by water splitting of (Si,Fe)-codoped anatase TiO 2 photocatalyst

Yanming Lin, Zhenyi Jiang*, Chaoyuan Zhu, Xiaoyun Hu, Haiyan Zhu, Xiaodong Zhang, Jun Fan, Sheng Hsien Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

The electronic and optical properties are studied using the density functional theory in (Si,Fe)-codoped anatase TiO 2 . The calculated results suggest that the synergistic effects of (Si,Fe) codoping can effectively induce the redshift of optical absorption edge, which leads to higher visible-light photocatalytic activity for hydrogen production by water splitting than pure anatase TiO 2 . To verify the reliability of our calculated results, nanocrystalline (Si,Fe)-codoped TiO 2 is synthesized by a sol-gel-solvothermal method, and excellent absorption performance and photocatalytic activity for hydrogen production by water splitting are observed in our experiments. Crown

Original languageEnglish
Pages (from-to)5209-5214
Number of pages6
JournalInternational Journal of Hydrogen Energy
Volume38
Issue number13
DOIs
StatePublished - 1 May 2013

Keywords

  • Codoped
  • Density functional theory
  • Photocatalytic activity for hydrogen production
  • TiO

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