BiVO4 as a Visible-Light Photocatalyst Prepared by Ultrasonic Spray Pyrolysis
BiVO4 as a Visible-Light Photocatalyst Prepared by Ultrasonic Spray Pyrolysis
复制标题
DOI：
10.1021/jp903757x
复制
发表时间：
2009-07-16
影响因子：
3.7
通讯作者：
Suslick, Kenneth S.
中科院分区：
文献类型：
--
作者：
Dunkle, Scott S.;Helmich, Richard J.;Suslick, Kenneth S.
采用超声喷雾热解（USP）技术合成了具有独特颗粒结构的BiVO4粉体。当固体在加热的气溶胶中形成时，由溶剂蒸发和前驱体材料分解产生的气体形成颗粒的形态。通过监测AgNO3溶液在λ > 400 nm光照射下形成O-2的动力学，对BiVO4粉末作为出氧光催化剂进行了测试。与商业BiVO4和WO3相比，USP制备的BiVO4具有明显优越的光催化活性，可能是由于颗粒形态的差异。
BiVO4 powders with unique particle architectures have been synthesized using ultrasonic spray pyrolysis (USP). Gases created from the evaporation of solvent and the decomposition of precursor materials shape the morphology of the particles as the solids are formed in the heated aerosol. The BiVO4 powder was tested as oxygen evolving photocatalysts by monitoring the kinetics of O-2 formation from a AgNO3 solution irradiated with lambda > 400 nm light. USP prepared BiVO4 was found to have significantly superior photocatalytic activity compared to commercial BiVO4 and WO3, likely due to differences in particle morphology.