Very slow formation of copper sulfide and cobalt sulfide nanoparticles in montmorillonite

Nithima Khaorapapong, Areeporn Ontam, Makoto Ogawa

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Intercalation of semiconductor nanoparticles, copper sulfide or cobalt sulfide, into montmorillonite was carried out by solid-solid reactions of Cu(II)- or Co(II)-montmorillonite with sodium sulfide at room temperature. The intercalation compounds were characterized by X-ray diffraction, thermal analysis, transmission electron microscopy, Raman, UV-visible and photoluminescence spectroscopy. The photoluminescent copper sulfide and cobalt sulfide nanoparticles in the interlayer spaces formed after the sample storage at room temperature for several months.

Original languageEnglish
Pages (from-to)182-186
Number of pages5
JournalApplied Clay Science
Volume51
Issue number1-2
DOIs
Publication statusPublished - 2011 Jan

Keywords

  • Cobalt sulfide
  • Copper sulfide
  • Intercalation
  • Montmorillonite
  • Solid-solid reactions

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geology

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