Electrospinning preparation, characterization and photocatalytic properties of Bi2O3 nanofibers

被引：205

作者：

Wang, Changhua ^{[2
,3
]}

Shao, Changlu ^{[1
]}

Wang, Lianjia ^{[1
]}

Zhang, Lina ^{[1
]}

Li, Xinghua ^{[1
]}

Liu, Yichun ^{[1
]}

机构：

[1] NE Normal Univ, Ctr Adv Optoelect Funct Mat Res, Changchun 130024, Peoples R China

[2] Chinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China

[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2009年 / 333卷 / 01期

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Bi2O3; Nanofibers; Electrospinning; Photocatalytic; VISIBLE-LIGHT-DRIVEN; BISMUTH OXIDE; NANOPARTICLES; FABRICATION; SPECTRA; FIBERS;

D O I：

10.1016/j.jcis.2008.12.077

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：

Bi2O3 nanofibers with diameter of 70-200 nm were successfully prepared by electrospinning a precursor mixture of polyacrylonitrile (PAN)/bismuth nitrate, followed by calcination treatment of the electrospun polymer/inorganic composite fibers. The resulting Bi2O3 nanofibers were characterized with X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, FT-IR spectra and UV-vis diffuse reflectance spectroscopy. The Bi2O3 nanofibers calcined at 500 degrees C exhibited beta phase, and whereas the nanofibers calcined at 550 and 600 degrees C both exhibited dominant 6 phase together with a trace amount of alpha phase. Photocatalytic experiments indicated that the obtained Bi2O3 nanofibers calcined at 500 degrees C were highly active for photodegradation of organic pollutants Rhodamine B (RB). Furthermore, the Bi2O3 nanofibers could be easily recycled without decrease of the photocatalytic activity. (c) 2009 Elsevier Inc. All rights reserved.

引用

页码：242 / 248

页数：7

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