Synthesis and photocatalytic properties of iron oxide pillared hydrogen tetratitanate via soft solution chemical routes

M. Yanagisawa, T. Yamamoto, T. Sato

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

Iron oxide pillared H2Ti4O9 was prepared by two different methods, i.e., hydrothermal reaction of H2Ti4O9 in FeSO4 aqueous solution followed by calcining in air and stepwise ion exchange reaction of H2Ti4O9 with n-propylamine aqueous solution and trinuclear ferric iron acetate aqueous solution, followed by UV light irradiation. The samples showed absorption in the visible region and were capable of hydrogen evolution under visible light irradiation (λ>400 nm) in the presence of 0.1 M Na2S aqueous solution as a hole acceptor, although no noticeable hydrogen evolution was observed when H2Ti4O9 and Fe2O3 were used independently. Hydrogen evolution activity of iron oxide pillared tetratitanate fabricated by the hydrothermal crystallization method increased by calcining in air at 300 °C after hydrothermal reaction, and was ca. five times greater than that produced by ion exchange reaction method.

Original languageEnglish
Pages (from-to)371-376
Number of pages6
JournalSolid State Ionics
Volume151
Issue number1-4
DOIs
Publication statusPublished - 2002 Nov 1
EventSSP- 2000 - Tokyo, Japan
Duration: 2000 Dec 112000 Dec 13

Keywords

  • Iron oxide pillared hydrogen tetratitanate
  • Photocatalytic properties
  • Synthesis

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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