Issue 18, 2013

Ionic liquid assisted synthesis and photocatalytic properties of α-Fe2O3 hollow microspheres

Abstract

α-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 solvothermal 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 α-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 α-Fe2O3 hollow microspheres. In addition, the electrochemical and photocatalytic properties of α-Fe2O3 were investigated. The α-Fe2O3 hollow microspheres exhibited high conductivity, high photocurrent, and high photocatalytic activity. The designed hollow microsphere showed potential applications in photocatalysis.

Graphical abstract: Ionic liquid assisted synthesis and photocatalytic properties of α-Fe2O3 hollow microspheres

Article information

Article type
Paper
Submitted
17 Oct 2012
Accepted
07 Feb 2013
First published
07 Feb 2013

Dalton Trans., 2013,42, 6468-6477

Ionic liquid assisted synthesis and photocatalytic properties of α-Fe2O3 hollow microspheres

L. Xu, J. Xia, K. Wang, L. Wang, H. Li, H. Xu, L. Huang and M. He, Dalton Trans., 2013, 42, 6468 DOI: 10.1039/C3DT50137J

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