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Surfactant-free synthesis of Bi2WO6 multilayered disks with visible-light-induced photocatalytic activity

被引：81
作者：
Xu, Chunxiao
Wei, Xiao
Guo, Yanmin
Wu, Hanqi
Ren, Zhaohui
Xu, Gang [1 ]
Shen, Ge
Han, Gaorong
机构：
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Multilayers; Oxides; Crystal growth; Electron diffraction; X-ray diffraction; Catalytic properties; NANOSIZED BI2WO6; SHAPE CONTROL; NANOPARTICLES; NANOSTRUCTURES; MICROSPHERES; NANOCRYSTALS; FABRICATION; MORPHOLOGY; PARTICLES; TITANIA;
D O I：
10.1016/j.materresbull.2009.04.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The synthesis of bismuth tungstate (Bi2WO6) multilayered disk which was constructed by oriented square nanoplates was easily realized via a simple surfactant-free hydrothermal method. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM) were used to investigate the as-obtained product. The results indicated that the three-dimensional (313) Bi2WO6 multilayered disk was constructed by self-assembly of square nanoplates via a perfect oriented manner. The formation mechanism of the product was carefully investigated on the basis of the results of time-dependent experiments. In addition, studies of the photocatalytic property demonstrated that the as-obtained Bi2WO6 could exhibit excellent visible-light-driven photocatalytic activity for the degradation of Rhodamine B (RhB). (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1635 / 1641
页数：7
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