Influence of surfactants on the morphology and photocatalytic activity of Bi2WO6 by hydrothermal synthesis

被引：17

作者：

Huang Yi ^{[1
]}

Wu JiHuai ^{[1
]}

Huang MiaoLiang ^{[1
]}

Lin JianMing ^{[1
]}

Huang YunFang ^{[1
]}

机构：

[1] Huaqiao Univ, Inst Mat Phys Chem, Minist Educ, Engn Res Ctr Environm Friendly Funct Mat, Quanzhou 362021, Peoples R China

来源：

SCIENCE CHINA-CHEMISTRY | 2011年 / 54卷 / 01期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

photocatalytic activity; Bi2WO6; surfactant; morphology; VISIBLE-LIGHT IRRADIATION; DRIVEN PHOTOCATALYSTS; ORGANIC CONTAMINANTS; AQUEOUS-SOLUTIONS; NANOSIZED BI2WO6; DECOMPOSITION; MICROSPHERES; DEGRADATION; FABRICATION; EVOLUTION;

D O I：

10.1007/s11426-010-4166-x

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

The flower-like microsphere Bi2WO6 with an average diameter of 2.5 mu m is synthesized by a simple hydrothermal method in the presence of surfactant sodium dodecyl sulfate (SDS) or polyvinylpyrrolidone (PVP). The crystalline phase, compositions, morphology, microstructure, surface area and band gap energy of the Bi2WO6 are characterized by X-ray diffraction, X-ray energy-dispersive spectrum, scanning electron microscopy, transmission electron microscopy and absorption spectra. It is found that surfactant has a significant influence on the microstructure and properties of the samples. The surfactant SDS enhances the surface area and photocatalytic activity of Bi2WO6, while the surfactant PVP has an opposite effect. Under Xe lamp irradiation, the Bi2WO6 sample prepared in the presence of SDS can degrade dye Rhodamine B (RhB) effectively.

引用

页码：211 / 216

页数：6

共 29 条

[1]

Preparation and characterization of bismuth tungstate polycrystalline flake-ball particles for photocatalytic reactions [J].