Synthesis and characterization of visible-light absorbing ordered mesoporous titanosilicate incorporated with vanadium oxide

In Soo Park, Sun Young Choi, Jeong Sook Ha, Jihyeong Khim

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    8 Citations (Scopus)

    Abstract

    Ordered mesoporous titanosilicates (OMTs) showing UV-visible-light absorption were synthesized using SBA-15 ordered mesoporous silica as a host framework, where the incorporated vanadium oxide worked as a visible-light receptor. The structures and the chemical composition of the OMTs were investigated with powder X-ray diffraction, nitrogen physisorption isotherm, transmission electron microscope and X-ray photoelectron spectroscopy. Vanadium oxide nanoparticles are incorporated into the interconnecting mesopores of SBA-15 structure and the most of titanium dioxide is uniformly coated on SBA-15 as well as vanadium oxide surfaces. The presence of vanadium oxide nanoparticles in OMTs induced visible-light absorption of titanium oxide at the wavelength above 400 nm.

    Original languageEnglish
    Pages (from-to)161-166
    Number of pages6
    JournalChemical Physics Letters
    Volume444
    Issue number1-3
    DOIs
    Publication statusPublished - 2007 Aug 17

    Bibliographical note

    Funding Information:
    This work was supported by the Ministry of Science and Technology (Grant No. M10503000187-05M0300-18710), National Research Laboratory Program of the Korean Science and Engineering Foundation and Korea Research Foundation (Grant No. KRF-2004-005-C00068).

    ASJC Scopus subject areas

    • General Physics and Astronomy
    • Physical and Theoretical Chemistry

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