Electrospun nanofibers of Bi-doped TiO2 with high photocatalytic activity under visible light irradiation

被引：87

作者：

Xu, Jie ^{[1
]}

Wang, Wenzhong ^{[1
]}

Shang, Meng ^{[1
]}

Gao, Erping ^{[1
]}

Zhang, Zhijie ^{[1
]}

Ren, Jia ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2011年 / 196卷

基金：

中国国家自然科学基金;

关键词：

Nanofibers; Photocatalysis; TiO2; Bismuth; Visible light; PHOTOLUMINESCENCE; PHOTOREACTIVITY; DEGRADATION;

D O I：

10.1016/j.jhazmat.2011.09.010

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Bi-doped TiO2 nanofibers with different Si content were firstly prepared by an electrospinning method. The as-prepared nanofibers were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), photoluminescence spectra (PL), and UV-vis diffuse reflectance spectroscopy (DRS). The results indicated that Bi3+ ions were successfully incorporated into TiO2 and extended the absorption of TiO2 into visible light region. The photocatalytic experiments showed that Bi-doped TiO2 nanofibers exhibited higher activities than sole TiO2 in the degradation of rhodamine B (RhB) and phenol under visible light irradiation (lambda > 420 nm), and 3% Bi:TiO2 samples showed the highest photocatalytic activities. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：426 / 430

页数：5

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