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Journal of Nanomaterials
Volume 2011 (2011), Article ID 186528, 5 pages
http://dx.doi.org/10.1155/2011/186528
Research Article

Hydrothermal Synthesis of Sb2S3 Nanorods Using Iodine via Redox Mechanism

1Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51664, Iran
2WCU Nano Research Center, School of Mechanical Engineering, Yeungnam University, Gyeongsan 712-749, Republic of Korea
3Department of Chemistry, Faculty of Sciences, Tarbiat Modares University, Tehran 14115-175, Iran
4Center for Research Facilities, Yeungnam University, Gyongsan 712-749, Republic of Korea

Received 24 March 2011; Accepted 2 May 2011

Academic Editor: Zhi Li Xiao

Copyright © 2011 Abdolali Alemi 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

Crystalline antimony sulfide (Sb2S3) with nanorods morphology was successfully prepared via hydrothermal method by the reaction of elemental sulfur, antimony, and iodine as starting materials with high yield at 180∘C for 24 h. Using oxidation reagent like iodine as an initiator of redox reaction to prepare Sb2S3 is reported for first time. The powder X-ray diffraction pattern shows the Sb2S3 crystals belong to the orthorhombic phase with calculated lattice parameters, 𝑎=1.120 nm, 𝑏=1.128 nm, and 𝑐=0.383 nm. The quantification of energy-dispersive X-ray spectrometry analysis peaks gives an atomic ratio of 2 : 3 for Sb : S. TEM and SEM studies reveal the appearance of the as-prepared Sb2S3 is rodlike which is composed of nanorods with the typical width of 50–140 nm and length of up to 4 μm. The PL emission indicates that band gap of Sb2S3 is around 2.50 ev, indicating a considerable blue shift relative to the bulk. A formation mechanism of Sb2S3 nanostructure is proposed.