Hydrothermal synthesis of hierarchical flower-like Bi2WO6 microspheres with enhanced visible-light photoactivity

被引：32
|
作者：
Liu, Yumin [1 ]
Ding, Zhiwei [1 ]
Lv, Hua [1 ]
Guang, Jing [1 ]
Li, Shuang [1 ]
Jiang, Juhui [1 ]
机构：
[1] Henan Normal Univ, Sch Chem & Chem Engn, Collaborat Innovat Ctr Henan Prov Green Mfg Fine, Xinxiang 453007, Henan, Peoples R China
来源：
MATERIALS LETTERS | 2015年 / 157卷
基金：
中国国家自然科学基金;
关键词：
Bi2WO6; F127; Semiconductor; Crystal growth; PHOTOCATALYTIC ACTIVITY;
D O I：
10.1016/j.matlet.2015.05.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Three-dimensional (3D) hierarchical flower-like Bi2WO6 microspheres assembled from 20 nanosheets were successfully prepared by a simple hydrothermal route using the non-ionic surfactant F127 (EO100PO65-EO100) as the morphology director. On the basis of the evolution of the morphologies as a function of reaction time, a possible formation mechanism for the hierarchical architecture was proposed. The photocatalytic activities of the as-prepared Bi2WO6 samples were evaluated for the degradation of Rhodamine B (RhB) under visible-light irradiation. Due to the combined effects of large surface area and efficient separation of charge carriers, the hierarchical flower-like Bi2WO6 microspheres exhibited improved photocatalytic performances. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：158 / 162
页数：5
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