Table of Contents
Journal of Nanoparticles
Volume 2013, Article ID 367812, 11 pages
http://dx.doi.org/10.1155/2013/367812
Research Article

The Growth of Bismuth Sulfide Nanorods from Spherical-Shaped Amorphous Precursor Particles under Hydrothermal Condition

Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India

Received 22 October 2012; Accepted 3 January 2013

Academic Editor: Fabien Grasset

Copyright © 2013 Pravas Kumar Panigrahi and Amita Pathak. 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.

Supplementary Material

Figure S1 shows XRD patterns of Bi2S3 samples synthesized at different hydrothermal temperatures (i.e, 120 °C, 140 °C, 160 °C and 180 °C) with incubation period fixed at 6 h. As the hydrothermal reaction temperature was increased, the peak (marked as *) due to unidentified phase was observed to diminish in intensity and eventually disappeared to give way to diffraction lines characteristic of the pure Bi2S3 phase at hydrothermal temperatures ≥160 °C. The SEM images of the same set of samples (Figure S2) suggest that though rod-like morphologies with diameters in nanometer range are formed after 6 h of incubation period, however, some aggregated masses were visible, when the reaction was carried out at a lower temperature, which gradually disappeared as the temperature was increased. The sample synthesized at hydrothermal temperature of 160 °C (for 6 h) in the reaction medium containing only TEA as a solvent (i.e., without water) produced Bi2S3 nanorods with diameters and lengths in the range of 77–575 nm and 1200–3700 nm, respectively (Figure S3).

  1. Supplementary Figures