Journal
DALTON TRANSACTIONS
Volume 42, Issue 18, Pages 6468-6477Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3dt50137j
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Funding
- National Nature Science Foundation of China [21007021, 21177050, 21206060]
- China Postdoctoral Science Foundation [2012M510125]
- Jiangsu Province [1102118C]
- Doctoral Innovation Fund of Jiangsu [CXZZ12_0668]
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alpha-Fe2O3 hollow microspheres have been successfully prepared in the presence of metal ion-containing reactable ionic liquid 1-octyl-3-methylimidazolium tetrachlorideferrate(III) ([Omim] FeCl4) under the solvo-thermal condition. The as-prepared samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDS), FT-IR spectrum, and diffuse reflectance spectroscopy (DRS). The effect of concentration of ionic liquids on the morphology of alpha-Fe2O3 had been investigated in detail. It was found that [Omim] FeCl4 acted not only as Fe source but also as solvent and template for the fabrication of alpha-Fe2O3 hollow microspheres. In addition, the electrochemical and photocatalytic properties of alpha-Fe2O3 were investigated. The alpha-Fe2O3 hollow microspheres exhibited high conductivity, high photocurrent, and high photocatalytic activity. The designed hollow microsphere showed potential applications in photocatalysis.
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