期刊
APPLIED SURFACE SCIENCE
卷 350, 期 -, 页码 43-49出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.03.196
关键词
Titanium dioxide; Hydrogen doping; Thin films; Photocatalysis; Hydrogenation
类别
资金
- Research Council of the University of Tehran
- center of excellence on the structure and physical properties of matter of the University of Tehran
Thin layers of anatase titanium dioxide were coated on glass by spray pyrolysis method. The layers were hydrogenated by DC plasma from room temperature up to 350 degrees C. Hydrogen plasma treatment at low temperatures, leads to decrease the surface roughness, while surface roughness is increased by enhancing plasma temperature. Layers' band gap was decreased 0.13 eV by plasma treatment at highest temperature. Hydrophilicity and photocatalytic properties of the layers under plasma treatment at 150 and 200 degrees C were improved noticeably. However, plasma treatment at temperatures above 200 degrees C was lead to decrease hydrophilicity and photocatalytic activity of TiO2 layers. The reason seems formation of oxygen vacancies in the interior layers that act as charge carriers' recombination centers. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据