期刊
JOURNAL OF APPLIED ELECTROCHEMISTRY
卷 48, 期 10, 页码 1197-1203出版社
SPRINGER
DOI: 10.1007/s10800-018-1198-y
关键词
TiO2; Photocatalysis; Nanotube; Anodization; Doping
资金
- National Natural Science Foundation of China [61604058]
- Guangdong Science and Technology Department [2015A020215011]
Titanium dioxide is a promising photocatalyst and has been widely used in many applications. However, it remains challenging to improve the photocatalytic performance of TiO2 under visible light illumination. Herein, a facile one step method was put forward to produce Mn-doped TiO2 nanotube arrays (TNTs) without the formation of manganese oxides. Intermediate band states were generated in Mn-doped TNTs, leading to enhanced visible light absorption and more efficient separation of photo-generated electron-hole pairs. The visible light photocatalysis of Mn-doped TNTs was significantly improved. The method reported here might be extended to the doping of other elements in TNTs and provides opportunities for the design of advanced photocatalysts.Graphical AbstractMn-doped TiO2 nanotubes were developed by a facile method without the formation of separate manganese oxides, which demonstrated significantly improved photocatalytic performance under visible light illumination. [GRAPHICS]
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