Spontaneous Phase and Morphology Transformations of Anodized Titania Nanotubes Induced by Water at Room Temperature

被引：192

作者：

Wang, Daoai ^{[1
,2
]}

Liu, Lifeng ^{[1
,3
]}

Zhang, Fuxiang ^{[2
]}

Tao, Kun ^{[1
]}

Pippel, Eckhard ^{[1
]}

Domen, Kazunari ^{[2
]}

机构：

[1] Max Planck Inst Microstruct Phys, D-06120 Halle, Germany

[2] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, Tokyo 1138656, Japan

[3] Int Iberian Nanotechnol Lab INL, P-4715330 Braga, Portugal

来源：

NANO LETTERS | 2011年 / 11卷 / 09期

关键词：

TiO(2) nanotubes; phase transformation; mesoporous structures; photocatalyst; SENSITIZED SOLAR-CELLS; TRANSPARENT CONDUCTING OXIDE; TIO2; NANOTUBES; HYDROGEN-PRODUCTION; ANATASE TIO2; ARRAYS; FILMS; CRYSTALLIZATION; PERFORMANCE; PHOTOCATALYST;

D O I：

10.1021/nl2015262

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a spontaneous phase transformation of titania nanotubes induced by water at room temperature, which enables the as-anodized amorphous nanotubes to be crystallized into anatase mesoporous nanowires without any other post-treatments. These mesoporous TiO(2) nanomaterials have a markedly improved surface area, about 5.5 times than that of the as-anodized TiO(2) nanotubes, resulting in a pronounced enhanced photocatalytic activity. The present approach not only allows a flexible control over the morphology of TiO(2) nanostructures but can fundamentally eliminate the need for high temperature operations for crystallizing amorphous TiO(2).

引用

页码：3649 / 3655

页数：7

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