Synthesis and Photocatalytic Activity of TiO<sub>2</sub>-ZrO<sub>2</sub> Nano-Sized Powders by Sol-Gel Process

Han, Jae-Kil; , Saito Fumio; Park, Jong-Gu; Lee, Byong-Taek; Han, Jae-Kil; , Saito Fumio; Park, Jong-Gu; Lee, Byong-Taek

doi:2005.42.1.7

J. Korean Ceram. Soc. > Volume 42(1); 2005 > Article

Journal of the Korean Ceramic Society 2005;42(1): 7.
doi: https://doi.org/10.4191/kcers.2005.42.1.007

Synthesis and Photocatalytic Activity of TiO₂-ZrO₂ Nano-Sized Powders by Sol-Gel Process

Jae-Kil Han, Saito Fumio ¹, Jong-Gu Park², Byong-Taek Lee

School of Advanced Materials Engineering, Kongju National University
¹Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
²Nano Materials Technology Center, Korea Institute of Science and Technology

ABSTRACT

[ $TiO_{2}-ZrO_{2}$ ] powders were successfully synthesized by the sol-gel process using titanium iso-propoxide as a precursor. The amorphous $TiO_{2}$ particles, 70 nm in size, homogenously adhered to the surface of $ZrO_{2}$ the powders. After calcination at $450^{circ}C$, most of the $TiO_{2}$ powders appeared as an anatase type, whereas they changed to a rutile phase at $750^{circ}C$. For comparison of photocata

Key words: Nanocrystalline, Methyl orange, Photocatalytic activity, Sol-gel method