Optical and morphological characterization of photocatalytic TiO2 thin films doped with silver

被引：41

作者：

Tomas, S. A. ^{[1
]}

Luna-Resendis, A. ^{[2
]}

Cortes-Cuautli, L. C. ^{[2
]}

Jacinto, D. ^{[1
]}

机构：

[1] IPN, Ctr Invest & Estudios Avanzados, Dept Fis, Mexico City 07360, DF, Mexico

[2] IPN, ESIME Zacatenco, UP Adolfo Lopez, Mexico City 07738, DF, Mexico

来源：

THIN SOLID FILMS | 2009年 / 518卷 / 04期

关键词：

Titania films; Ag-doped titanium dioxide; Photocatalysis; Sol-gel process; NANOPARTICLES; WATER; ION;

D O I：

10.1016/j.tsf.2009.03.219

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silver-doped titanium dioxide thin films were deposited on glass substrates by the sol-gel process. Undoped films and films doped with 1 and 3 mol% Ag were annealed at 100 or 500 degrees C. The optical and morphological properties of the films were analyzed by optical absorption spectroscopy and scanning electron microscopy. Additionally, the films were evaluated for their ability to degrade methylene blue. It was found that the photocatalytic activity is barely sensitive to silver doping for films annealed at 100 degrees C, whereas the effect of silver resulted in enhanced photocatalytic activity for films annealed at 500 degrees C. For the latter annealing temperature, the photocatalytic activity increased with increasing Ag doping concentration. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1337 / 1340

页数：4

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