Synthesis and photocatalytic behavior of BiVO4 with decahedral structure

被引：42

作者：

Zhu, Zhenfeng ^{[1
]}

Zhang, Lian ^{[1
]}

Li, Junqi ^{[1
]}

Du, Juan ^{[1
]}

Zhang, Yanbin ^{[1
]}

Zhou, Jiaqi ^{[1
]}

机构：

[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 07期

基金：

中国博士后科学基金;

关键词：

Decahedral BiVO4; Photocatalytic; Microwave hydrothermal; MB; VISIBLE-LIGHT; BISMUTH VANADATE; HYDROTHERMAL SYNTHESIS; TEMPERATURE; ROUTE; DECOMPOSITION; IRRADIATION; FABRICATION; MECHANISM; PROPERTY;

D O I：

10.1016/j.ceramint.2013.02.093

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Decahedral BiVO4 was successfully synthesized with Tween-80 as a template by the microwave hydrothermal method. The effects of hydrothermal temperature and Tween-80 on crystal phase and morphology of the obtained BiVO4 were investigated. The crystal phase and morphology were characterized by X-ray diffraction, field emission scanning electron microscopy and UV-vis diffuse reflectance spectroscopy. The results indicated that the as-prepared decahedral BiVO4 was monoclinic. The photocatalytic behavior for methylene blue (MB) degradation was enhanced with the assistance of an appropriate amount of hydrogen peroxide (H2O2) under visible light irradiation. The photocatalytic tests indicated that the photocatalytic efficiency of decahedral BiVO4 synthesized at 180 degrees C was 63.5%. However, BiVO4 sample synthesized at 160 degrees C showed the highest photocatalytic degradation rate, up to 81.6%, due to its small size and crystal defects. Crown Copyright (C) 2013 Published by Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：7461 / 7465

页数：5

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