Sol-Hydrothermal Synthesis and Photocatalytic Activity of WO3 Doped SiO2/TiO2 Nanocomposites

doi:10.7517/j.issn.1674-0475.2008.05.349

Abstract

Abstract: WO₃ doped SiO₂/TiO₂ nano-particles were synthesized by sol-hydrothermal method and characterized by X-ray diffraction,Fourier transform infrared spectroscopy(FT-IR),Zeta potential,BET,and transmission electron microscopy.The photocatalytic activity was evaluated by photocatalytic degradation of methyl orange under UV light irradiation.The modified photocatalyst shows high photocatalytic activity.It was found that WO₃ and SiO₂ increased the stability of anatase TiO₂,and inhibited the grain aggregation and growth.

Key words: sol-hydrothermal, titania oxide, silica oxide, tungsten oxide, methyl orange, photocatalytic degradation

CLC Number:

O643
X7

LI Yin-hui, YIN De-hong, CHEN Zan, WANG Jin-qu. Sol-Hydrothermal Synthesis and Photocatalytic Activity of WO₃ Doped SiO₂/TiO₂ Nanocomposites[J]. Imaging Science and Photochemistry, 2008, 26(5): 349-357.

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Sol-Hydrothermal Synthesis and Photocatalytic Activity of WO₃ Doped SiO₂/TiO₂ Nanocomposites

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