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

被引：4

作者：

Han, Jae-Kil ^{[1
]}

Saito, Fumio ^{[2
]}

Park, Jong-Gu ^{[3
]}

Lee, Byong-Taek ^{[1
]}

机构：

[1] Kongju Natl Univ, Sch Adv Mat Engn, Chungnam 314701, South Korea

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[3] Korea Inst Sci & Technol, Nano Mat Technol Ctr, Seoul 136791, South Korea

来源：

JOURNAL OF THE KOREAN CERAMIC SOCIETY | 2005年 / 42卷 / 01期

关键词：

Nanocrystalline; TiO2ZrO2 nano-sized powders; Methyl orange; Photocatalytic activity; Sol-gel method;

D O I：

10.4191/kcers.2005.42.1.007

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

TiO2-ZrO2 powders were successfully synthesized by the sol-gel process using titanium iso-propoxide as a precursor. The amorphous TiO2 particles, 70 nm in size, homogenously adhered to the surface of ZrO2 the powders. After calcination at 450 degrees C, most of the TiO2 powders appeared as an anatase type, whereas they changed to a rutile phase at 750 degrees C. For comparison of photocatalytic activity, TiO2-ZrO2 nano-sized powders calcined at 450 degrees C, 600 degrees C, and 750 degrees C were used. In the TiO2-20 wt%ZrO2 powders calcined at 450 degrees C, there was excellent removal efficiency of Methyl Orange (MO). For the calcination temperature increased, TiO2ZrO2 nano-sized powders increased ZrO2 contents showed the good photoactivity for the photooxidation of MO.

引用

页码：7 / 10

页数：4

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