Improvement in the photocatalytic activity of TiO2 by the partial oxidation of the C impurities

被引：25

作者：

Kim, Myoung Joo ^{[1
]}

Kim, Kwang-Dae ^{[1
]}

Seo, Hyun Ook ^{[1
]}

Luo, Yuan ^{[1
]}

Dey, Nilay Kumar ^{[1
]}

Kim, Young Dok ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 07期

关键词：

Photocatalysis; TiO2; X-ray photoelectron spectroscopy (XPS); WATER;

D O I：

10.1016/j.apsusc.2010.10.007

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：

TiO2 was treated by water in an ultrasonic bath, resulting in the enhancement of the photocatalytic activity for the decomposition of methylene blue under UV and visible light irradiation. No change in the crystallinity and optical properties of TiO2 by the H2O-treatment was observed. The X-ray photoelectron spectroscopy (XPS) and FT-IR data revealed that the C impurities were oxidized by this treatment, indicating that the change in the structure of the C impurities plays a pivotal role in the photocatalytic activity of TiO2. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2489 / 2493

页数：5

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