Synthesis of Ag-loaded tungsten oxide microspheres and their improved photocatalytic activity

Micro & nano letters

article

Yu She¹  Yufu Zhu¹  Lei Zhou²  Yuanmi Yuan¹  Jing Hao¹  Qingsong Jiang³ 

[1] Faculty of Mechanical & Material Engineering, Huaiyin Institute of Technology;Faculty of Mathematics and Physics, Huaiyin Institute of Technology;Jiangsu Engineering Laboratory for Lake Environment Remote Sensing Technologies, Faculty of electronic information engineering, Huaiyin Institute of Technology

关键词: crystal growth from solution;    nanofabrication;    semiconductor materials;    X-ray diffraction;    silver;    transmission electron microscopy;    tungsten compounds;    nanoparticles;    photocatalysis;    photocatalysts;    surface chemistry;    field emission scanning electron microscopy;    dyes;    semiconductor growth;    water pollution control;    Ag-loaded tungsten oxide microspheres;    hydrothermal synthesis methods;    field-emission scanning electron microscopy;    photocatalytic properties;    tungstic acid solution;    microstructures;    nanostructures;    X-ray diffraction;    rhodamine B solution;    hydrogen peroxide solution;    nanoparticles;    Ag-WO3;   

DOI  :  10.1049/mnl.2019.0425

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

In this study, tungsten oxide microstructures/nanostructures with different morphologies were prepared by the hydrothermal synthesis methods. The morphologies and structures of the obtained products were characterised by field-emission scanning electron microscopy and X-ray diffraction. The photocatalytic properties of tungsten oxide microstructures/nanostructures were characterised by the degradation of rhodamine B solution. The results indicate that tungsten oxide microspheres prepared by using tungstic acid and hydrogen peroxide solution as raw materials show the highest photocatalytic activity. By changing the concentration of tungstic acid used in the synthesis process, the morphologies of tungsten oxide microspheres can be controlled. The influences of the amount of chemical reagent addition on its morphology and catalytic properties were discussed. In order to further improve the photocatalytic activity of the samples, Ag nanoparticles were loaded on the obtained tungsten oxide microspheres. The photocatalytic experiment results indicate that the photocatalytic performance of tungsten oxide was improved by Ag loading. The results indicate that Ag-loaded tungsten oxide microspheres are favourable for their photocatalytic applications.

【 授权许可】

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