期刊
CRYSTENGCOMM
卷 12, 期 6, 页码 1754-1758出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b923115c
关键词
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资金
- National Natural Science Foundation of China [50732004, 50972155]
- National Basic Research Program of China [2007CB613302]
- Nanotechnology Programs of Science and Technology Commission of Shanghai [0852nm00500, 0952nm00400]
A novel BiVO4 hierarchical nanostructure assembled by nanorods was realized via a facile and additive-free solvothermal method. Based on the electron microscope observations, the growth of such architectures with rod to dumbbell to sphere transformation has been proposed as a crystal splitting growth process. Ethylene glycol (EG) instead of organic surfactant played an important dual role during the process. Different shapes were obtained by controlling the synthetic parameters. The as-prepared BiVO4 hierarchical nanostructures exhibited excellent visible-light-driven photocatalytic efficiency, which was increased to nearly 20 times than that of the products prepared by traditional solid-state reaction (SSR) and the nitrogen doped TiO2 (N-TiO2). Moreover, the photocatalyst could settle immediately, which is beneficial for the separation and recycle considering their future applications in waste water treatment.
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