Photocatalytic property of TiO2 loaded with SnO2 nanoparticles

被引：11

作者：

Chai, Seung Yong ^{[1
]}

Kim, Young Seok ^{[1
]}

Lee, Wan In ^{[1
]}

机构：

[1] Inha Univ, Dept Chem, Inchon 402751, South Korea

来源：

JOURNAL OF ELECTROCERAMICS | 2006年 / 17卷 / 2-4期

关键词：

SnO2; nanoparticle; TiO2; photocatalyst; THIN-FILMS; AZO-DYE; DEGRADATION; PARTICLES; OXIDATION; BEHAVIOR; WATER;

D O I：

10.1007/s10832-006-0385-0

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：

2.5 nm-sized SnO2 nanoparticles in rutile phase were loaded on the surface of 25 nm-sized TiO2 (Degussa P-25) to form SnO2/TiO2 nano-composite structure. Up to 10 mol%, the loaded SnO2 nanoparticles were well-dispersed on the surface of TiO2 without mutual agglomeration. The SnO2/TiO2 with 1 mol% of SnO2 demonstrated 1.5-1.7 times of photocatalytic activity compared to the pure TiO2 in decomposing gaseous 2-propanol and in evolving CO2. The role of SnO2 nanoparticles on TiO2 surface is considered to be retardation of recombination rate between electrons and holes by trapping the photo-excited electrons from the conduction band of TiO2.

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收藏

页码：323 / 326

页数：4

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