Preparation and Photocatalytic Property of Cubic WO3
2014 ◽
Vol 1081
◽
pp. 304-307
The cubic WO3powder was prepared by sol-gel method with WCl6as the soure of tungsten and P123as the structure-directing agent. The crystalline phase and microstructure of the powder were characterized through TG-DSC, XRD and SEM techniques, respectively. It was found the powder annealed at 250°C for 4h mainly was cubic WO3with a little monoclinic phase. The SEM micrographs revealed the powder has a petal shape with about 200 nm mean particle diameter. The photocatalytic activity of the powder was evaluated by methyl orange as mode compound to photocatalytic degradation under UV light irradiation. The results show the cubic WO3powder has much higher photocatalytic activity than the monoclinic phase.
2014 ◽
Vol 665
◽
pp. 393-396
2013 ◽
Vol 634-638
◽
pp. 2272-2275