Synthesis and photocatalytic properties of TiO2 and Pt pillared HCa2Nb3O10 doped with various rare earth ions

Tsugio Sato, Yasuhiko Fukugami

Research output: Contribution to journalConference articlepeer-review

20 Citations (Scopus)

Abstract

TiO2 and Pt pillars were constructed in the interlayer of H1-xCa2-xLnxNb3O10 (Ln = La, Nd, Eu, x = 0-0.75) by the stepwise intercalation reactions. The amounts of TiO2 and Pt incorporated were 0.5-2.9 and 0.04-0.19 wt.%, respectively. The height of TiO2 and Pt pillar was less than 0.5 nm. TiO2 and/or Pt pillared compounds were capable of water cleavage into hydrogen and oxygen by the band gap irradiation without a sacrificial hole scavenger although no water cleavage proceeded by using H1-xCa2-xLnxNb3O10 separately. The photocatalytic activity for water cleavage was in the order H1-xCa2-xLnxNb3O10/Pt > H1-xCa2-xLnxNb3O10/ (Pt, TiO2) > H1-xCa2-xLnxNb3O10/ TiO2 and that of Pt pillared nanocomposite was in the order H1-xCa2-xLaxNb3O10/Pt > H1-xCa2-xEuxNb3O10/Pt > H1-xCa2-xNdxNb3O10/Pt.

Original languageEnglish
Pages (from-to)397-405
Number of pages9
JournalSolid State Ionics
Volume141-142
DOIs
Publication statusPublished - 2001 May 1
Event14th Intenational Symposium on the Reactivity of Solids - Budapest, Hungary
Duration: 2000 Aug 272000 Aug 31

Keywords

  • HCaNbO
  • Photocatalysis
  • Pt pillar
  • TiO pillar

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Synthesis and photocatalytic properties of TiO<sub>2</sub> and Pt pillared HCa<sub>2</sub>Nb<sub>3</sub>O<sub>10</sub> doped with various rare earth ions'. Together they form a unique fingerprint.

Cite this