Selective Removal of the Outer Shells of Anodic TiO2 Nanotubes

被引：37

作者：

Li, Hui ^{[1
,2
,4
,5
]}

Cheng, Jian-Wen ^{[1
,4
]}

Shu, Shiwei ^{[1
,4
]}

Zhang, Jie ^{[1
,4
]}

Zheng, Lingxia ^{[1
,4
]}

Tsang, Chun Kwan ^{[1
,4
]}

Cheng, Hua ^{[1
,4
]}

Liang, Fengxia ^{[1
,4
]}

Lee, Shuit-Tong ^{[3
]}

Li, Yang Yang ^{[1
,4
,5
]}

机构：

[1] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China

[2] Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China

[3] Soochow Univ, Inst Funct Nano & Soft Mat FUNSOM, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Suzhou 215123, Jiangsu, Peoples R China

[4] City Univ Hong Kong, Ctr Funct Photon, Hong Kong, Hong Kong, Peoples R China

[5] USTC CityU Joint Adv Res Ctr, Suzhou 215123, Jiangsu, Peoples R China

来源：

SMALL | 2013年 / 9卷 / 01期

关键词：

anodization; TiO2; nanotubes; electrochemical etching; photocatalytic efficiency; electric fields; OPTICAL-PROPERTIES; ARRAYS; MORPHOLOGY; WATER; FABRICATION; EFFICIENCY; INITIATION; MECHANISM; GROWTH; LAYERS;

D O I：

10.1002/smll.201201874

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A facile electrochemical method to selectively remove the outer walls of anodic TiO2 nanotubes by leaving the as-anodized nanotubes in the same electrolyte and applying an electric field parallel to the anodic film for several minutes is reported. The better-separated single-walled TiO2 nanotubes thus obtained show significantly improved photocatalytic efficiency compared with their non-etched counterparts. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：37 / 44

页数：8

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