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Journal of Inorganic Materials

Journal of Inorganic Materials >

2010 , Vol. 25 >Issue 4: 365 - 369

DOI: https://doi.org/10.3724/SP.J.1077.2010.00365

Research Paper

Microwave Heating Preparation of Agmodified TiO2 for Photocatalytic Degradation of Gaseous Toluene

  • LI Xiao-Bin ,
  • LU Xiao-Hua
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  • Environmental Science Research Institute, Huazhong University of Science and Technology, Wuhan 430074, China

Received date: 2009-07-10

  Revised date: 2009-11-23

  Online published: 2010-04-27

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Abstract

Using Ti(OBu)4 as titanium source, Agmodified TiO2 was prepared by the microwave heating method and the hydrothermal ethod, respectively, and was characterized by Xray diffraction (XRD), Xray fluorescence (XRF), ultravioletvisible diffuse reflectance spectroscope (UV-Vis) and scanning electron microscope (SEM). The photocatalytic activity of the samples was tested in the degradation of gaseous toluene under UV and visible light irradiation, respectively. The results showed that the presence of Ag promoted the phase transformation of TiO2 from anatase to other phases. Compared with the hydrothermal method, the microwave heating method had more positive effect on the formation of Agmodified TiO2 with smaller crystallite size (16.4nm) and aggregate (80-200nm), more phases structure (anatase, rutile and brookite), richer channel structure, and lower band gap energy (2.87eV). Furthermore, Agmodified TiO2 prepared by the microwave heating method exhibited a better photocatalytic activity in the degradation of toluene under UV or visible light irradiation.

Key words： titanium dioxide; microwave; Agmodified

Cite this article

LI Xiao-Bin , LU Xiao-Hua . Microwave Heating Preparation of Agmodified TiO2 for Photocatalytic Degradation of Gaseous Toluene[J]. Journal of Inorganic Materials, 2010 , 25(4) : 365 -369 . DOI: 10.3724/SP.J.1077.2010.00365

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