W-Doped TiO₂ Preparation and Photocatalytic Degradation of Guaiacol

Abstract:

In this paper, W-doped TiO₂ (W-TiO₂) powder was prepared in hydrothermal method by mixing TiO₂ and ammonium metatungstate. The catalysts were characterized by X-ray diffraction and ultraviolet spectrophotometer. The results displayed that W-TiO₂ showed an anatase crystallite structure with 2 % W content. W-element in W-TiO₂ was amorphous state. The guaiacol was degraded with the W-TiO₂ in the visible light. It was a model compounds of lignin existed in the plant fibers. The degradation rate of guaiacol was increased with the photocatalytic time, as high as 88.21 % after 360 min irradiation. It was concluded that the W-TiO₂ had an obvious photocatalytic activity under visible light. It can be used in the photocatalytic degradation of lignin.

• Periodical: Applied Mechanics and Materials (Volumes 513-517)
• Pages: 33-36
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.513-517.33
• Online since: February 2014
• Authors: Zi Chang Xie*, Ying Wang, Peng Wang, Lei Zhang
• Keywords: Degradation, Guaiacol, Photocatalysis, TiO₂, W-Doped

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