Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 3, Issue 9, Pages 3594-3601Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am2008147
Keywords
Bi2WO6; nanoplates; photocatalysis; visible light; CO2 fixation; renewable fuel
Funding
- 973 Programs [2011CB933300/2011CB933303, 2007CB613305]
- JST-MOST [2009DF-A61090]
- JSPS-NSFC [20811140087]
- NSFC [20971048, 50732004]
- Fundamental Research Funds for the Central Universities [1113020401]
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Ultrathin and uniform Bi2WO6 square nanoplates of similar to 9.5 nm thickness corresponding to six repeating cell units were prepared in the presence of oleylamine using a hydrothermal route. The Bi2WO6 nanoplates show great potential in the utilization of visible light energy to the highly efficient reduction of CO2 into a renewable hydrocarbon fuel. On the one hand, the ultrathin geometry of the nanoplates promotes charge carriers to move rapidly from the interior to the surface to participate in the photoreduction reaction. This should also favor the improved separation of photogenerated electron and hole and a lower electron-hole recombination rate; on the other hand, the Bi2WO6 square nanoplate is proven to provide the well-defined {001} facet for two dominantly exposed surfaces, which is a prerequisite for the high level of photocatalytic activity of CO2 fixation.
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