Photocatalytic Properties of TiO2 Nanostructures Fabricated by Means of Glancing Angle Deposition and Anodization

被引：33

作者：

Pihosh, Yuriy ^{[1
]}

Turkevych, Ivan ^{[2
]}

Ye, Jinhua ^{[3
]}

Goto, Masahiro ^{[1
]}

Kasahara, Akira ^{[1
]}

Kondo, Michio ^{[2
]}

Tosa, Masahiro ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Mat Reliabil Ctr, Tsukuba, Ibaraki 3050047, Japan

[2] Natl Inst Adv Ind Sci & Technol, Res Ctr Photovolta, Tsukuba 3058568, Japan

[3] Natl Inst Mat Sci, Photocatalyt Mat Ctr, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2009年 / 156卷 / 09期

基金：

日本学术振兴会;

关键词：

anodisation; catalysis; decomposition; electrochemistry; nanotechnology; nanotubes; photochemistry; sputter deposition; titanium compounds; ultraviolet radiation effects; TITANIUM-DIOXIDE; THIN-FILMS; OXIDATION; ANATASE; DEGRADATION; NANOTUBES; POLLUTION; GROWTH;

D O I：

10.1149/1.3160622

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Structural, optical, and photocatalytic properties of various TiO2 nanostructures prepared by glancing angle deposition (GLAD) and by electrochemical anodic oxidation of Ti have been studied. The TiO2 nanorods were prepared on unheated glass substrates by using reactive sputtering of Ti in the GLAD regime. TiO2 nanotubes and brush-type nanostructures were fabricated by anodic oxidation of flat Ti films and Ti nanorods prepared by GLAD, respectively. The optical studies revealed that the nanotubes and brush-type nanostructures possess antireflection properties. The photocatalytic activity of TiO2 nanostructures was characterized by following decomposition of isopropanol under visible and UV light irradiation and found to be significantly higher in nanostructured samples than in their flat counterparts. Also, TiO2 nanotubes and brush-type nanostructures showed superior photocatalytic activity in comparison with nanorods due to a significantly higher specific surface area.

引用

页码：K160 / K165

页数：6

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