Paper Title:
Preparation and Photocatalytic Activity of Fe-Doped TiO2 Nanopowders
  Abstract

(0-2%) Fe-doped TiO2 nanopowders were prepared by sol-gel method. The Size, structure, appearance, the light absorption and hydroscopicity properties were characterized by XRD, TEM, UV-Vis and FTIR. The photocatalytic degradation of crystal violet under UV over catalyst was used as a probe reaction to evaluate their photocatalytic activity, the dependence of photocatalytic properties on Fe doping content and roasting temperature were also discussed. The results show that the process of phase transfer of TiO2 from anatase to rutile was promoted by doping Fe, 1.5% Fe3+-doped TiO2 nanoparticles formed many defects at grain boundaries, inhibited effectively the recombination of the photoproduced e-/h+, improved the efficiency of photons, enhanced the absorbing water function of catalyst, and 1.5% Fe3+-doped TiO2 revealled strongly absorption in UV and widened obviously absorption in Vis. Photocatalytic degradation ratio of crystal violet (4mg/L) on 1.5% Fe3+-doped TiO2 was increased 30% than pure TiO2.

  Info
Periodical
Materials Science Forum (Volumes 610-613)
Main Theme
Edited by
Zhongwei Gu, Yafang Han, Fusheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou
Pages
248-252
DOI
10.4028/www.scientific.net/MSF.610-613.248
Citation
B. X. Ren, H. H. Teng, "Preparation and Photocatalytic Activity of Fe-Doped TiO2 Nanopowders", Materials Science Forum, Vols. 610-613, pp. 248-252, 2009
Online since
January 2009
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$32.00
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