Enhanced Photocatalytic Activity of α-Fe2O3 Prepared with the Assistance of Ionic Liquid

Article Preview

Abstract:

In this paper, α-Fe2O3 photocatalyst with high photocatalytic activity (IL-α-Fe2O3) was fabricated via hydrothermal routine using 1-ethyl-3- methylimidazolium dihydrophosphate ([EMIm]H2PO4). The specific surface area, structure, the photo-induced charge separation rate were characterized by Brunauer-Emmett-Teller (BET) measurements, X-ray diffraction (XRD), and surface photovoltage spectroscopy (SPS), respectively. The results show that adding ([EMIm]H2PO4 into the synthetic system alters the specific surface parameters and photo-induced charge separation rate. The photocatalytic activity for decolorization of methyl orange (MO) solution was investigated. The results show that the photocatalytic activity of IL-α-Fe2O3 is more than 2.5 times that of the reference α-Fe2O3 and the underlying mechanisms are discussed.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

123-126

Citation:

Online since:

October 2014

Authors:

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] W. Wu, R. Hao, F. Liu, X.T. Su and Y. L. Hou: J. Mater. Chem. A. 1 (2013), p.6888.

Google Scholar

[2] R. L. Spray, K.J. McDonald and K. S. Choi:J. Phys. Chem. C. 115(2011), p.3497.

Google Scholar

[3] W.J. Zheng, X.D. Liu, Z.Y. Yan and L.J. Zhu: ACS Nano Vol. 3 (2009), p.115.

Google Scholar

[4] J. F. Shen, M. Shi, B. Yan, H.W. Ma, N. Li and M.X. Ye: J. Mater. Chem Vol. 21 (2011), p.7795.

Google Scholar

[5] B.Q. Wang, L.Q. Jing, Y.C. Qu, S.D. Li, B.J. Jiang, L.B. Yang and H.G. Fu, Appl. Surf. Sci. 252 (2006), p.2817.

Google Scholar