Low temperature synthesis of titania nanocrystal and its visible light response photocatalytic activity

Shu Yin, Jin Shu Wang, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Titania nanocrystals were prepared by a low temperature process in liquid media. The crystallization of amorphous precursor could proceed at low temperature around room temperature. The thermodynamically stable rutile formed at low temperature below 70°C, while the metastable anatase formed at higher temperature. The phase composition, microstructure, morphology, and specific surface area of titania changed significantly depending on the reprecipitation temperatures. Well-crystallized needle-like rutile titania crystals with high specific surface areas possessed higher photocatalytic activities than those of anatase crystals under visible light irradiation of wavelength >400 nm and /or >510 nm.

    Original languageEnglish
    Pages (from-to)2503-2506
    Number of pages4
    JournalGongneng Cailiao/Journal of Functional Materials
    Volume35
    Issue numberSUPPL.
    Publication statusPublished - 2004 Sep 1

    Keywords

    • Low-temperature synthesis
    • Photocatalyst
    • Titania nanocrystal
    • Visible light response activities

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Electrical and Electronic Engineering
    • Materials Chemistry

    Fingerprint

    Dive into the research topics of 'Low temperature synthesis of titania nanocrystal and its visible light response photocatalytic activity'. Together they form a unique fingerprint.

    Cite this