Studies on Photocatalytic Degradation of Methylene Blue by Eu3+/Gd3+ Co-Doped TiO2
The 0.05%Gd3+ /0.4%Eu3+ co-doped TiO2 composite nanopowders have been prepared by sol-gel method and characterized by the techniques such as XRD, SEM/EDAX. The photocatalytic degradation of Methylene blue in aqueous solution was used as a probe reaction to evaluate their photocatalytic activity. The results show that the 0.05%Gd3+ /0.4%Eu3+ co-doped TiO2 are only structuresd by anatase phase with grain sizes of about 16nm at 540 °C for 4 h. The photocatalutic degradation of Methylene blue was 96.7% in 120 min of irradiation when the pH value was 9.
Linli Xu, Wenya Tian and Elwin Mao
X. D. Lu et al., "Studies on Photocatalytic Degradation of Methylene Blue by Eu3+/Gd3+ Co-Doped TiO2", Applied Mechanics and Materials, Vols. 80-81, pp. 55-59, 2011