Preparation of Fe-doped TiO2 nanotube and their photocatalytic activity

被引：0
|
作者：
Kang, C. [1 ]
Du, B. [1 ]
Yang, Z. [1 ]
Xie, E. [2 ]
机构：
[1] Baoji Univ Arts & Sci, Nonlinear Res Inst, Baoji 721016, Peoples R China
[2] Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China
来源：
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2015年 / 17卷 / 9-10期
关键词：
TiO2; nanotube; Anodization; Fe-doped; Photocatalytic; NANOPARTICLES; DEGRADATION; OXIDATION; ARRAYS; CYTOTOXICITY; SIDEWALLS;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fe-doped TiO2 nanotubes were prepared by anodization and solution-coating technique. Field-emission scanning electron microscopy (SEM) and transmission electron microscope (TEM) were employed to characterize the morphology and structure of the nanotubes. The photocatalytic performance of Fe-doped TiO2 nanotube was indicated by photo-decomposition rate of Rhodamine B under ultraviolet-visible light irradiation. The results show that Fe-doped TiO2 nanotubes with the optimal concentration exhibit excellent photocatalytic activity compared to the undoped TiO2 nanotubes and the nanotubes with excessive Fe-doped proportion. This could be explained as Fe ions may play a role as e(-) or h(+) traps and reduces e(-)/h(+) pair recombination rate and thus improves photocatalytic efficiency. However, excessive Fe ions decrease photocatalytic efficiency immensely.
引用
收藏
页码：1367 / 1371
页数：5
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