Photocatalytic activity of TiO2 nanodome thin films

被引：8

作者：

Grandcolas, M. ^{[1
]}

Yonge, L. ^{[1
]}

Van Overschelde, O. ^{[1
]}

Snyders, R. ^{[1
]}

机构：

[1] Univ Mons Hainaut, Lab Plasma Surface Interact, B-7000 Mons, Belgium

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 08期

关键词：

Nanodome; Photocatalysis; Thin films; Titania; SIZE;

D O I：

10.1016/j.ceramint.2014.04.154

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：

Nanostructured TiO2 thin films on silicon wafers with a dome-shape were fabricated employing polystyrene latex particles as a sacrificial template. Magnetron sputtering was used as the deposition method and a structured thin layer of titania was obtained. The surface of the samples was observed by scanning transmission electron and atomic force microscopes, and showed a distinctive and uniform dome-shaped layer, where X-ray diffraction confirmed the presence of TiO2 anatase. Surface roughness tended to decrease contact angles where a superhydrophilic character under UV irradiation was observed. The formed nanodome thin films also showed a higher photocatalytic degradation of methylene blue under the same conditions compared to an equivalent non-structured thin film. (C) 2014 Published by Elsevier Ltd and Techna Group S.r.l.

引用

页码：12939 / 12946

页数：8

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