Sillén-Aurivillius-related oxychloride Bi6NbWO14Cl as a stable O2-evolving photocatalyst in Z-scheme water splitting under visible light

Hironobu Kunioku, Masanobu Higashi, Cédric Tassel, Daichi Kato, Osamu Tomita, Hiroshi Kageyama, Ryu Abe

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Abstract

Following the recent discovery of a Sillén-Aurivillius perovskite Bi4NbO8Cl with a stable photocatalytic activity for water oxidation under visible light, we studied a structurally related intergrowth compound Bi6NbWO14Cl. It also works as a stable O2-evolving photocatalyst in a Z-scheme water splitting system, but has a slightly wider band gap than that in Bi4NbO8Cl. These results suggest the importance of the Sillén-Aurivillius framework, offering possible band gap tuning by varying structural motifs and their sequence in the Sillén-Aurivillius-related systems.

Original languageEnglish
Pages (from-to)583-586
Number of pages4
JournalChemistry Letters
Volume46
Issue number4
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

  • Oxychloride
  • Photocatalyst
  • Z-scheme water splitting

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