Synthesis of Fe and N Co-doped Bi2Ti2O7 Nanofiber with Enhanced Photocatalytic Activity Under Visible Light Irradiation

Bitao Liu; Qionghua Mo; Jiali Zhu; Zhupei Hou; Lingling Peng; Yijia Tu; Qinyi Wang

doi:10.1186/s11671-016-1610-7

Synthesis of Fe and N Co-doped Bi2Ti2O7 Nanofiber with Enhanced Photocatalytic Activity Under Visible Light Irradiation

Nanoscale Res Lett. 2016 Dec;11(1):391. doi: 10.1186/s11671-016-1610-7. Epub 2016 Sep 8.

Authors

Bitao Liu¹, Qionghua Mo^{2

3}, Jiali Zhu², Zhupei Hou², Lingling Peng², Yijia Tu^{4

5}, Qinyi Wang⁶

Affiliations

¹ Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China. liubitao007@163.com.
² Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China.
³ Material and Energy Department, Southwest University, Beibei, Chongqing, 400700, China.
⁴ Research Institute for New Materials Technology, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China. 275430858@qq.com.
⁵ College of Art and Design, Chongqing University of Arts and Sciences, Yongchuan, Chongqing, 402160, China. 275430858@qq.com.
⁶ Chemical Engineering, University of Missouri, Columbia, MO, 65211-2200, USA.

Abstract

A series of N-Fe-Bi2Ti2O7 nanofibers were successfully synthesized. The structure, morphology, visible light photocatalytic properties, and the degradation mechanism of N-Fe-Bi2Ti2O7 were investigated. A new phase of Bi4Ti3O7 and smaller band gap could be observed after doing Fe and N into Bi2Ti2O7. It can degrade 66 % MO and 87 % MB in 120 min under visible light irradiation, which is much more than that of pure Bi2Ti2O7. The results indicate that such unique structure could enhance the charge transfer between the nanostructure interfaces and therefore improve its photocatalytic activities.

Keywords: Composite materials; Photocatalysts; Semiconductors; Visible light.