Formation and Photocatalytic Application of ZnO Nanotubes Using Aqueous Solution

被引：258

作者：

Chu, Dewei ^{[1
]}

Masuda, Yoshitake ^{[1
]}

Ohji, Tatsuki ^{[1
]}

Kato, Kazumi ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Moriyama Ku, Nagoya, Aichi 4638560, Japan

来源：

LANGMUIR | 2010年 / 26卷 / 04期

关键词：

CRYSTALLINE ZNO; DEGRADATION; MORPHOLOGIES; FILMS; PHOTOACTIVITY; PERFORMANCE; DEPOSITION; ARRAYS; DYE;

D O I：

10.1021/la902866a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Vertically aligned ZnO nanotubes were prepared by etching ZnO red arrays in aqueous solution, which were previously developed by chemical bath deposition method. The morphological, structural, photoluminescence, as well as photocatalytic properties of the ZnO nanotubes were examined with respect to the pH values of chemical bath solution. The morphology of the products was found to be sensitive to the pH values and chemical bath temperatures. The nanotubes synthesized at a low pH value (5.82) exhibited a strong UV emission and a weak, defect-related visible emission. The highest photocatalytic efficiency was also observed at pH = 5.82. The possible mechanism for the difference of photocatalytic efficiency was discussed.

引用

页码：2811 / 2815

页数：5

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