Improved photocatalytic activity and characterization of mixed TiO2/SiO2 and TiO2/Al2O3 materials

被引：536

作者：

Anderson, C ^{[1
]}

Bard, AJ ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT CHEM & BIOCHEM,AUSTIN,TX 78712

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1997年 / 101卷 / 14期

关键词：

D O I：

10.1021/jp9626982

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The characterization of mixed oxides of TiO2/SiO2 and TiO2/Al2O3 prepared by sol-gel methods is described. Application of the TiO2/Al2O3 material for the photocatalytic decomposition of salicylic acid gave improved activity relative to TiO2-only materials. The photocatalytic activity of TiO2/SiO2, TiO2/Al2O3, and TiO2 toward the photocatalytic decomposition of phenol demonstrated the enhancement of local TiO2 sites on TiO2/SiO2 materials relative to the other materials. The characterization of the catalysts indicates that the TiO2/SiO2 materials consist of matrix-isolated TiO2 quantum particles, while the TiO2/Al2O3 materials do not.

引用

页码：2611 / 2616

页数：6

共 18 条

[1] IMPROVED PHOTOCATALYST OF TIO2/SIO2 PREPARED BY A SOL-GEL SYNTHESIS [J].