The shape-specific photocatalytic efficiency of quantum size TiO 2 nanoparticles

Zheng Chen, Jinghai Liu, Song Qiu, Graham Dawson, Wei Chen

    Research output: Journal article publicationJournal articleAcademic researchpeer-review

    11 Citations (Scopus)

    Abstract

    The hypothesis of increasing electron/hole separation and photocatalytic activity by elongating one dimension size of extremely small nanoparticles was verified. Comparable TiO 2 nanorods and nanodots were prepared using very similar hydrolysis processes in oleic acid. The oleic acid coating on the TiO 2 surface was removed using UV irradiation. The structure, surface and absorption properties of samples were characterized. Photoluminescence and photocatalytic activity of samples were evaluated semi-quantitatively. The experimental results proved that the nanorods did have more efficient electron/hole separation and higher photocatalytic activity than spherical nanodots.

    Original languageEnglish
    Pages (from-to)1-4
    Number of pages4
    JournalCatalysis Communications
    Volume21
    DOIs
    Publication statusPublished - 5 May 2012

    Keywords

    • 1D
    • One dimension
    • PL
    • Shape

    ASJC Scopus subject areas

    • Catalysis
    • Chemistry(all)
    • Process Chemistry and Technology

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