Authors: Liu, Xiaoyan; Xi, Guangcheng; Liu, Yankuan; Xiong, Shenglin; Chai, Lanlan; Qian, Yitai

Source: Journal of Nanoscience and Nanotechnology, Volume 7, Number 12, December 2007 , pp. 4501-4507(7)

Publisher: American Scientific Publishers

Abstract:

A solution route has been developed to synthesize covellite (CuS) nanostructures through the precitation reaction of CuCl₂ · 2H₂O, thiourea (Tu), and NaHCO₃ in distilled water at room temperature. By regulating the concentration of Tu, CuS nanotubes and hollow nanospheres with diameters of 100-200 nm have been selectively prepared. Structural characterizations indicate that both nanotubes and hollow spheres are composed of CuS nanoparticles with diameters of about 5-10 nm. UV-Vis absorption and room temperature photoluminescence (PL) spectra display different morphology-related absorption phenomena for nanotubes and hollow nanospheres. A systematic investigation has been carried out to understand the factors influencing the CuS morphology. Two different routes are identified to explain the formation of the nanotubes and hollow nanospheres herein.

Keywords: CUS; NANOTUBES; HOLLOW NANOSPHERES; ROOM TEMPERATURE

Document Type: Research article

DOI: http://dx.doi.org/10.1166/jnn.2007.899

Publication date: 2007-12-01

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• Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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