WO<sub>3sub>/TiO<sub>2sub> microstructures for enhanced photocatalytic oxidation
- 作者：Feng Wang<sup>asup><sup> ; sup><sup>wangfengcuhk@gmail.comsup> ; Xiaojun Chen<sup>bsup><sup> ; sup><sup>xjchen1982@hotmail.comsup> ; Xianluo Hu<sup>csup><sup> ; sup><sup>xlhu07@gmail.comsup> ; Kam Sing Wong<sup>bsup><sup> ; sup><sup>phkswong@ust.hksup> ; Jimmy C. Yu<sup>asup><sup> ; sup><sup>jimyu@cuhk.edu.hksup>
- 关键词：Composite material ; Water oxidation ; Tungsten trioxide ; Titanium dioxide ; Photocatalysis
- 刊名：Separation and Purification Technology
- 出版年：2012
- 期刊代码：78_13835866
- 类别：ce
- 出版时间：3 May, 2012
- 卷：91
- 期：Complete
- 页码：67-72
- 文件大小：846 K
摘要
Novel WO<sub>3sub>/TiO<sub>2sub> microrods and microplates are prepared by simple precipitation and calcination processes. The microstructures are assembled from WO<sub>3sub> and TiO<sub>2sub> nanoparticles. They were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) coupled with energy dispersive X-ray (EDX) analysis, transmission electron microscopy (TEM) and fluorescence emission decay spectra. The as-prepared composites show enhanced photoactivity than that of WO<sub>3sub> and TiO<sub>2sub> in the photocatalytic oxidation of water to O<sub>2sub>. The formation mechanism of assembled structures and their enhanced photoactivities are discussed based on characterization results.