期刊
CRYSTENGCOMM
卷 15, 期 39, 页码 7904-7913出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ce41005f
关键词
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资金
- National Key Technology RD Program [2013BAF09B02]
- International Science and Technology Cooperation Project of Shaanxi Province [2011KW-11]
- Innovation Team Assistance Foundation of Shaanxi Province [2013KCT-06]
- Innovation Team Assistance Foundation of Shaanxi University of Science and Technology [TD09-05]
- Graduate Innovation Fund of Shaanxi University of Science and Technology
Various micro/nanostructured WO3 center dot 0.33H(2)O crystallites were successfully controlled by employing microwave heating under different conditions. By using X-ray diffraction, scanning electron microscopy, transmission electron microscopy and high resolution transmission electron microscopy, the phase and morphology of the products were identified. Comparing the as-prepared crystallites under conventional and microwave heating processes found that microwave heating may play a crucial role to initiate the oriented growth of orthorhombic WO3 center dot 0.33H(2)O micro/nanostructures. Moreover, these oriented structures exhibit clearly improved photocatalytic activity over the structures prepared under the conventional heating process. By applying the multi-site complexation model, the improved photocatalytic properties were found to relate to the exposure of high surface acidity orthorhombic WO3 center dot 0.33H(2)O crystallites, which originate from the oriented growth of microstructures prepared under the microwave heating process.
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