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Journal of Spectroscopy
Volume 2015, Article ID 680183, 9 pages
http://dx.doi.org/10.1155/2015/680183
Research Article

Preparation and Application of Titanate Nanotubes on Dye Degradation from Aqueous Media by UV Irradiation

1Institute of Petroleum and Commodity, Harbin University of Commerce, 138 Tongda Street, Harbin 150076, China
2Department of Chemical and Materials Engineering, National Kaohsiung University of Applied Sciences, 415 Chien-Kung Road, Kaohsiung 807, Taiwan
3Institute of Advanced Technology of Heilongjiang Academy of Sciences, 135 Nanma Road, Harbin 150020, China

Received 30 June 2014; Accepted 15 July 2014

Academic Editor: Tifeng Jiao

Copyright © 2015 Rui Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Titanate nanotubes were synthesized by a hydrothermal method using commercial TiO2 powder and then used as a photocatalyst. The titanate nanotubes were synthesized by varying the hydrothermal temperature from 110°C to 180°C. The morphological changes and phase transformation of the TiO2 nanotubes were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The particles’ scattering behavior was investigated by Raman studies, and the surface area of the nanotubes was determined by a Brunauer, Emmett, and Teller (BET) analysis. Comparative studies show that the surface area of nanotubes increases with increasing temperature up to 130°C. The catalytic behavior of the synthesized nanotubes was also studied. The as-prepared titanate nanotubes were applied to methylene blue (MB, an organic dye) degradation in aqueous media by UV irradiation. Approximately 99% of the dye was removed from the aqueous media using 2 g/L titanate nanotube when the initial dye concentration was 9 mg/L. The total irradiation time was 2 h.