One step synthesis of niobium doped titania nanotube arrays to form (N,Nb) co-doped TiO2 with high visible light photoelectrochemical activity

被引：77

作者：

Cottineau, Thomas ^{[1
]}

Bealu, Nicolas ^{[1
]}

Gross, Pierre-Alexandre ^{[1
]}

Pronkin, Sergey N. ^{[1
]}

Keller, Nicolas ^{[1
]}

Savinova, Elena R. ^{[1
]}

Keller, Valerie ^{[1
]}

机构：

[1] Univ Strasbourg, LMSPC, CNRS, UMR 7515, F-67087 Strasbourg, France

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2013年 / 1卷 / 06期

关键词：

THIN-FILMS; MU-M; OXIDE; WATER; NITROGEN; LAYERS; ION; NB; PHOTOCATALYSIS; ANODIZATION;

D O I：

10.1039/c2ta00922f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The chemical modification of aligned titanium dioxide nanotube (TiO2-NT) arrays provides new doping possibilities to improve their photoelectrochemical activity under visible light. Niobium doped TiO2-NTs containing up to 15% of Nb in the near-surface region are prepared by a flexible single step procedure using a fluoroniobate complex simultaneously acting as a source of the doping element and fluoride anions required for nanotube formation. This negatively charged complex allows an efficient insertion of Nb in the forming TiO2-NT structure during the anodization process. These nanotube arrays are further modified with nitrogen to achieve (Nb,N) co-doped nanotubes with noticeable visible light photoelectrochemical activity.

引用

收藏

页码：2151 / 2160

页数：10

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