Hollow CdS nanoparticles formed through electrodeposition of Cd(OH) 2 on graphite and treatment with H2S

Jin Hao Jhang, Wei Hsiu Hung

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5 Citations (Scopus)

Abstract

Cd(OH)2 nanoparticles (NPs) were synthesized on graphite treated with plasma through electrochemical deposition in a solution of CdF2 saturated with O2. Cd(OH)2 NPs were formed from reaction of Cd2+ in solution with OH- generated on the graphite after reduction of O2. The Cd(OH)2 NPs were densely distributed on the surface and converted to form hollow CdS NPs via a thermal reaction with H2S at 300 °C. The resulting Cd(OH)2 and CdS NPs were characterized with measurements of X-ray photoelectron spectroscopy, atomic force microscopy, and high-resolution transmission electron microscopy. The latter results showed that the Cd(OH)2 and CdS NPs exhibited hexagonal and cubic crystalline structures, respectively. The photoluminescence of CdS NP showed a direct band at 2.47 eV and an indirect band at ∼1.67 eV.

Original languageEnglish
Pages (from-to)512-516
Number of pages5
JournalMaterials Chemistry and Physics
Volume129
Issue number1-2
DOIs
Publication statusPublished - 2011 Sep 15

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Keywords

  • Cadmium hydroxide
  • Cadmium sulfide
  • Electrodeposition
  • Graphite

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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