Synthesis and photochemical properties of semiconductor pillared layered compounds

Yoshinobu Fujishiro, Satoshi Uchida, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    62 Citations (Scopus)


    CdS and ZnS mixtures, Fe2O3 and TiO2 pillars were constructed in the interlayer of montmorillonite, layered double hydroxide, H4Nb6O17 and H2Ti4O9 by the intercalation reactions. The thicknesses of the semiconductors incorporated were less than 1 nm and the band gap energies of them were slightly larger than those of normal crystalline ones. The photocatalytic activities of the semiconductors incorporated were superior to those of unsupported ones. The incorporation of semiconductors in the interlayers of semiconducting layered compounds such as H2Ti4O9 and H4Nb6O17 was much more efficient in enhancing the hydrogen production activity than when an insulator such as montmorillonite and layered double hydroxide was used, since the recombination of photo-induced electrons and holes was depressed by the electron transfer from the incorporated semiconductors to the semiconducting host layer.

    Original languageEnglish
    Pages (from-to)67-72
    Number of pages6
    JournalInternational Journal of Inorganic Materials
    Issue number1
    Publication statusPublished - 1999 Apr 1


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

    ASJC Scopus subject areas

    • Materials Chemistry

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