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Influence of Eu3+ doping on the degradation property of TiO2 nanostructures

RUEY CHANG HSIAO1,2,* , N. SABARI ARUL3, D. MANGALARAJ3, RUEY SHINE JUANG2

Affiliation

  1. Department of Chemical Engineering and Material Engineering, Lunghwa University of Science and Technology, Taoyuan, 330, Taiwan
  2. Department of Chemical Engineering and Material Science, Yuan Ze University, Chung-Li, 320, Taiwan.
  3. Department of Nanoscience and Technology Bharathiar University, Coimbatore 641 046, India

Abstract

TiO2 nanoparticles loaded with Eu species were prepared with the aim to enhance the photocatalytic activity and to study the activity at different irradiation conditions. TiO2 and Eu3+ doped TiO2 nanostructures were synthesized by hydrothermal method. X-ray diffraction pattern showed a decrease in crystallite size and increase in the crystallinity of the sample on doping with Eu3+. A reduction in the particle size was observed from the SEM and TEM images of Eu3+ doped TiO2 sample. The photocatalytic activity of the undoped and Eu3+-TiO2 nanopowders was estimated towards orange (II) sodium salt (AO7) using natural solar irradiation and UV sources 20 W, 100 W and 400 W respectively. Doping of Eu3+ in TiO2 has significantly improved the photodegradation and decolorization efficiency of the obtained nanostructures..

Keywords

Europium doped titanium dioxide; Degradation, Orange (II) sodium salt (AO7-dye), Optical property.

Submitted at: Jan. 15, 2010
Accepted at: Feb. 18, 2010

Citation

RUEY CHANG HSIAO, N. SABARI ARUL, D. MANGALARAJ, RUEY SHINE JUANG, Influence of Eu3+ doping on the degradation property of TiO2 nanostructures, Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 2, pp. 193-198 (2010)