Synthesis and Structure Characterization of Nanosized Au Clusters on Titania-Modified Mesoporous MCM-41

Abstract

Abstract: Titania modified mesoporous slilcate MCM-41 (MCM-TiO₂) was synthesized by precursor tetrabutyltitanate
and calcined MCM-41. Au clusters deposited on the inner surface of titania-modified MCM-41 by the photodeposition method through AuCl^-₄ and
MCM-TiO₂ reaction. The structure and optical properties of the as-synthesized samples were investigated by XRD, XPS, N₂ adsorption/
desorption isotherms and diffuse reflectance UV-Vis absorbance spectroscopy. The decrease of BET surface areas and the pore volume proved that nanosized
Au clusters deposited in the mesopore of MCM-TiO₂. The Au 4f of XPS and the plasmon absorption in UV-Vis spectrum showed that the deposited Au was
in metal state.

Key words: Au clusters: titania-modified MCM-41, Au deposited titania-modified MCM-41

CLC Number:

O611

ZHENG Shan,GAO Lian,GUO Jing-Kun. Synthesis and Structure Characterization of Nanosized Au Clusters on Titania-Modified Mesoporous MCM-41[J]. Journal of Inorganic Materials.

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Synthesis and Structure Characterization of Nanosized Au Clusters on Titania-Modified Mesoporous MCM-41

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