Preparation and Characterization of WO3 Nano-Powders

doi:10.7517/j.issn.1674-0475.2009.01.48

Abstract

Abstract: The WO₃ nano-powders have been prepared by method of gas-liquid reaction in this work.The techniques such as solid UV/vis spectra,XRD,TEM,SEM,EDS were used to characterize the catalyst.Effects of glycol concentration along with the adding of surfactant SDBS on the particle size and the morphology of the photocatalysts were discussed in detail.The photoelectrochemical actions of WO₃ powders were studied by degradating the phenol.It was showed that when the proportion between water and glycol is 25:75,The size of WO₃ powders is about 30 nm and sheet WO₃ which diameter is about 80 nm can be obtained by adding 0.1 g surfactant.Both of them have much better photocatalytic activities than the product from market.

Key words: WO₃ nano-powders, characterization, photocatalytic activities

CLC Number:

MENG Qing-hua, YU Xin, ZHU Yi-ren. Preparation and Characterization of WO₃ Nano-Powders[J]. Imaging Science and Photochemistry, 2009, 27(1): 48-56.

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Preparation and Characterization of WO₃ Nano-Powders

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