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Journal of Materials Science

, Volume 42, Issue 19, pp 8193–8202 | Cite as

Preparation of anatase F doped TiO2 sol and its performance for photodegradation of formaldehyde

  • Donggen HuangEmail author
  • Shijun Liao
  • Shuiqing Quan
  • Lei Liu
  • Zongjian He
  • Jinbao Wan
  • Wenbin Zhou
Article

Abstract

Anatase fluoride doped TiO2 sol (F-TiO2) catalyst was prepared by a modified sol-gel hydrothermal method, using tetra butyl titanate as a precursor. The influences of F doping, temperature of hydrothermal, values of medium pH on the morphology and crystallization were studied. The microstructure and morphology of sol sample were characterized by XRD, TEM, FTIR, UV–Vis–DRS, particle size distribution (PSD) and XPS. The results showed that F-TiO2 particles in sol were spherical and partly crystallized to anatase structure, and dispersed in the aqueous medium homogeneously and that the average particle size was ca. 10.5 nm calculated from XRD and TEM results. It was also found that the addition of fluorine could improve the crystallization and adsorption of particles significantly, the photocatalytic activity for decomposition of formaldehyde were enhanced remarkably with the doping of fluorine. Possible mechanism of anatase F-TiO2 formed under hydrothermal conditions was discussed.

Keywords

TiO2 Photocatalytic Activity Pure TiO2 Tetra Butyl Titanate Amorphous TiO2 

Notes

Acknowledgement

We gratefully acknowledge the financial support of Guangdong Natural Science Foundation (020863 and 036555).

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Donggen Huang
    • 1
    Email author
  • Shijun Liao
    • 2
  • Shuiqing Quan
    • 1
  • Lei Liu
    • 1
  • Zongjian He
    • 1
  • Jinbao Wan
    • 1
  • Wenbin Zhou
    • 1
  1. 1.School of Environmental Science and Engineering, The Key Lab of Poyang Lake ecology and Bio-resource Utilization Ministry of EducationNanchang UniversityNanchangChina
  2. 2.College of ChemistrySouth China University of TechnologyGuangzhouChina

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