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Journal of Nanomaterials
Volume 2011, Article ID 529874, 10 pages
http://dx.doi.org/10.1155/2011/529874
Research Article

Hydrothermal Synthesis of Nanostructures with Different Morphologies and Their Optical Properties

Department of Materials Science and Engineering, Yunnan University, 650091 Kunming, China

Received 15 January 2011; Accepted 20 March 2011

Academic Editor: Hongchen Chen Gu

Copyright © 2011 Lin Tan 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

SnO2 hollow spheres and nanorods were prepared by an aqueous sol-gel route involving the reaction of tin chloride and sodium dodecyl sulphate (SDS) in hexanol and heptane under the different hydrothermal treating temperature and time. X-ray diffraction (XRD) spectra, Fourier transformed infrared (FTIR) spectrum, scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM) and Raman spectroscopy were used to examine the morphology and microstructure to find out the cause. The result indicates that the products are hollow spheres with diameters of approximately 200–900 nm and shell thickness of 60–70 nm via hydrothermal treating at 160°C and one-dimensional rod-like nanostructures with diameters of approximately 20–40 nm and lengths of 100–300 nm via hydrothermal treating at 180 and 200°C, respectively. Room-temperature photoluminescence (PL) properties were investigated under the excitation of 275 nm. The samples exhibited the emission peaks of room-temperature photoluminescence.