Effect of Fe-doped TiO2 nanoparticle derived from modified hydrothermal process on the photocatalytic degradation performance on methylene blue

Zhijie Li; Wenzhong Shen; Wensen He; Xiaotao Zu

doi:10.1016/j.jhazmat.2007.11.095

Effect of Fe-doped TiO2 nanoparticle derived from modified hydrothermal process on the photocatalytic degradation performance on methylene blue

J Hazard Mater. 2008 Jul 15;155(3):590-4. doi: 10.1016/j.jhazmat.2007.11.095. Epub 2007 Nov 29.

Authors

Zhijie Li¹, Wenzhong Shen, Wensen He, Xiaotao Zu

Affiliation

¹ Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610041, PR China.

PMID: 18179869
DOI: 10.1016/j.jhazmat.2007.11.095

Abstract

Anatase Fe-doped TiO2 nanoparticles with 10-15 nm particles sizes were directly prepared with amorphous TiO2 nanoparticles and Fe(NO3)3.9H2O by hydrothermal method. The TiO2 crystallite grain sizes decreased with the increase of Fe contents. When Fe contents increased, the diffuse reflectance spectra of Fe-doped TiO2 nanoparticles displayed a red shift in the band gap transition. And the absorbing band edge moved to visible range when the Fe contents were more than 2 mol%. XPS analysis showed that Fe3+ was not on the surface of TiO2 nanoparticles, but inserting into the matrix interior. As a result, the photoactivity degradation of MB on Fe-doped TiO2 nanoparticles decreased.

MeSH terms

Catalysis
Crystallography, X-Ray
Iron / chemistry*
Metal Nanoparticles*
Methylene Blue / chemistry*
Microscopy, Electron, Transmission
Photochemistry
Spectrophotometry, Ultraviolet
Titanium / chemistry*

Substances

titanium dioxide
Titanium
Iron
Methylene Blue