Synthesis and photocatalytic properties of HTaWO6/(Pt,TiO2) and HTaWO6/(Pt,Fe2O3) nanocomposites

Jihuai Wu, Satoshi Uchida, Yoshinobu Fujishiro, Shu Yin, Tsugio Sato

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30 Citations (Scopus)

Abstract

HTaWO6/(Pt,TiO2) and HTaWO6/(Pt,Fe2O3) nanocomposites were synthesized by successive intercalation reactions of HTaWO6 with [Pt(NH3)4]Cl2 aqueous solution, n-C3H7NH2/n-heptane mixed solution and acidic TiO2 colloid solution or [Fe3(CH3CO2)7(OH)(H 2O)2]NO3 aqueous solution followed by UV light irradiation. The gallery heights of HTaWO6/(Pt,TiO2), HTaWO6/TiO2, HTaWO6/(Pt,Fe2O3) and HTaWO6/Fe2O3 was less than 0.51 nm. The host HTaWO6 was white possessing band gap energy of 3.1 eV, whereas HTaWO6/Pt, HTaWO6/(Pt,TiO2), HTaWO6/Fe2O3 and HTaWO6/(Pt,Fe2O3) were yellow and showed broad reflection over 400-600 nm together with that corresponding to the host layer. Photocatalytic activities of HTaWO6/TiO2 and HTaWO6/Fe2O3 were superior to those of unsupported TiO2 and Fe2O3 and were greatly enhanced by co-incorporation of Pt. HTaWO6/Pt, HTaWO6/(Pt,TiO2), HTaWO6/Fe2O3 and HTaWO6/(Pt,Fe2O3) showed photocatalytic activity.

Original languageEnglish
Pages (from-to)253-258
Number of pages6
JournalInternational Journal of Inorganic Materials
Volume1
Issue number3-4
DOIs
Publication statusPublished - 1999

Keywords

  • A. layered compounds
  • A. microporous materials
  • A. semiconductors
  • B. intercalation reactions
  • D. catalytic properties

ASJC Scopus subject areas

  • Materials Chemistry

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