Infrared -: active defects in a TiO2 mixture of coexisting anatase and rutile phases

被引：19

作者：

Skryshevskyy, VA

Dittrich, T

Rappich, J

机构：

[1] Hahn Meitner Inst Berlin GmbH, Abt SE2, D-14109 Berlin, Germany

[2] Kyiv Taras Shevchenko Univ, UA-01033 Kiev, Ukraine

[3] Hahn Meitner Inst Berlin GmbH, Abt SE1, D-12489 Berlin, Germany

来源：

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE | 2004年 / 201卷 / 01期

关键词：

D O I：

10.1002/pssa.200306734

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Anodic oxidation of Ti has been used to produce layers of TiO2 consisting of anatase or rutile or a mixture of both. While the anatase phase of TiO2 is formed at lower anodization potentials, the formation of the rutile phase starts at potentials above 100 V due to electrical breakdowns. Defects with broad optical absorption in the infrared range are generated only in anodic TiO2 layers with coexisting anatase and rutile phases under ultraviolet illumination in water containing atmosphere. These defects partially disappeared by annealing at about 400 degreesC for 30 min. The reversible defect reaction takes place in the surface regions between the anatase and rutile phases. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：157 / 161

页数：5

共 18 条

[1] Solar photocatalytic thin film cascade reactor for treatment of benzoic acid containing wastewater [J].