Synthesis and Photocatalytic Activity of TiO2 Nanoparticles Loaded on the Fluorine-Modified Hydrophobic Mesoporous Silica

Shuai Yuan; Shusuke Oakada; Keiichi Maki; Yasutaka Kuwahara; Masanori Tomonari; Shinichi Kawasaki; Kohsuke Mori; Hiromi Yamashita

doi:10.4028/www.scientific.net/SSP.124-126.1817

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HomeSolid State PhenomenaSolid State Phenomena Vols. 124-126Synthesis and Photocatalytic Activity of TiO2...

Synthesis and Photocatalytic Activity of TiO₂ Nanoparticles Loaded on the Fluorine-Modified Hydrophobic Mesoporous Silica

Abstract:

The fluorine-modified mesoporous silica HMS(F20) was synthesized by using the mixture of TEFS(SiF(OC2H5)3) and TEOS(Si(OC2H5)4) as the silica source. The specific surface and pore size distribution were characterized by N2 adsorption and the hydrophilic-hydrophobic property was measured by water adsorption. The photocatalytic activities of TiO2 nanoparticles loaded on HMF(F20) and HMS were investigated for the degradation of iso-butanol diluted in water. The results show that the fluorine-modified mesoporous silica HMS(F20) has higher hydrophobic property than HMS and the TiO2/HMS(F20) exhibits the higher photocatalytic activity than TiO2/HMS. The hydrophobic mesopores benefit the condensation of hydrophobic organic compounds diluted in water, which results in higher photocatalytic degradation efficiency.

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Periodical:

Solid State Phenomena (Volumes 124-126)

Pages:

1817-1820

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.124-126.1817

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Online since:

June 2007

Authors:

Shuai Yuan, Shusuke Oakada, Keiichi Maki, Yasutaka Kuwahara, Masanori Tomonari, Shinichi Kawasaki, Kohsuke Mori, Hiromi Yamashita

Keywords:

Fluorine-Modification, Hydrophobic Property, Mesoporous Silica, TiO₂ Photocatalyst

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