Preparation, structure and photocatalytic properties of cancrinite encapsulating lead and sulfide ions

Michihiro Miyake, Toshishige Akachi, Motohide Matsuda

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    Cancrinites encapsulating Pb2+ and S2- ions have been prepared by hydrothermal and cation-exchange processes, and their structures and photocatalytic properties have been investigated. The structure analyses revealed that Pb2+ ions exchanged with Na+ ions were statistically located around S2- ions in the same micropore, and the mean Pb-S bond lengths were estimated to be about 3.0 Å. It was found that the resulting specimens had photocatalytic properties, corresponding to an absorption band based on an electron transition between Pb2+ and S2- ions, from the decolorization of methylene blue aqueous solution under black light irradiation. Treating the specimens at 400 °C under an N2 atmosphere enhanced the photocatalytic property.

    Original languageEnglish
    Pages (from-to)791-797
    Number of pages7
    JournalJournal of Materials Chemistry
    Volume15
    Issue number7
    DOIs
    Publication statusPublished - Feb 21 2005

    ASJC Scopus subject areas

    • General Chemistry
    • Materials Chemistry

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