Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 48, Issue 4, Pages 1735-1739Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ie801516u
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Funding
- National Basic Research Program of China [973 Program, 2007CB613302]
- Nanotechnology Programs of Science and Technology Commission of Shanghai Municipality [0852nm00500]
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Nanoplate-stacked starlike BiVO4 products have been successfully synthesized by a hydrothermal method, where a water/ethanol mixture was the solvent and ethylenediamine tetraacetic acid (EDTA) was the chelating agent. The molar ratio of EDTA to Bi3+ was found to play an important role in the formation of this morphology. These starlike BiVO4 samples exhibited a high visible-light-driven photocatalytic efficiency. For the degradation of methylene blue (MB) under visible-light irradiation (lambda > 420 nm), about 91% of the MB was degraded within 25 min. This is much higher than. for BiVO4 samples prepared by solid-state reaction (bulk BiVO4) and other hydrothermal synthesis methods. The reasons for the differences in the photocatalytic activities of these BiVO4 samples were further investigated.
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