BiVO<sub>4</sub> as a Visible-Light Photocatalyst Prepared by Ultrasonic Spray Pyrolysis
Scott S. DunkleSchool of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801Richard J. HelmichSchool of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801Kenneth S. SuslickSchool of Chemical Sciences, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801
2009en
ABI
Annotatsiya
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 O2 formation from a AgNO3 solution irradiated with λ > 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.
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