Preparation and Photocatalytic Property of Lanthanum-Doped TiO₂ Nanoparticles

Abstract:

Nano-TiO₂ photocatalyst powders were prepared through the sol-gel method and supercritical fluid drying(SCFD). The TG-DTA、XRD、particle size distribution technique、SEM were used to characterize the hyperfine TiO₂ particles.The lanthanum-doped TiO₂ with different mass percentage of La³⁺ were compared with pure TiO₂ when used as photocatalyst in degradation of methyl orange. The best catalytic activity was observed with 0.02(mol)%La-TiO₂. Photocatalytic efficiency of the 0.02(mol)%La- TiO₂ is improved by 30.79% comparing to pure TiO₂.

• Periodical: Advanced Materials Research (Volume 549)
• Pages: 584-588
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.549.584
• Online since: July 2012
• Authors: Qing Li, Rui Zhi Wen
• Keywords: Degradation of Methyl Orange, Nano-TiO₂, Photocatalyst

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DOI: 10.1016/s1010-6030(98)00289-5