Synthesis and characterization of copper sulfide nanoparticles obtained by the polyol method

F. F. Castillón-Barraza, M. H. Farías, J. H. Coronado-López, M. A. Encinas-Romero, M. Pérez-Tello, R. Herrera-Urbina, Alvaro Posada-Amarillas

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20 Scopus citations

Abstract

Copper sulfide nanoparticles were synthesized using copper nitrate and sodium sulfide as raw materials in the presence of ethylene glycol at different temperatures, by the polyol method. The reaction synthesis was observed to take place within a fraction of a second and agglomerated particles with a mean size of 10 nm were obtained. The effect of temperature on the size and morphology of the particles was studied. A number of techniques for nanoparticle characterization were used, including X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy and ultraviolet-visible-near infrared techniques. The characterization revealed the presence of CuS (covellite). The band gap energy value for the nanoparticles was estimated to be 2.15 eV.

Original languageEnglish
Pages (from-to)596-601
Number of pages6
JournalAdvanced Science Letters
Volume4
Issue number2
StatePublished - Feb 2011

Keywords

  • Chemical synthesis
  • Copper sulfide nanoparticles
  • Optical properties
  • Polyol method
  • Transmission electron microscopy

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