African Journal of
Pure and Applied Chemistry

  • Abbreviation: Afr. J. Pure Appl. Chem.
  • Language: English
  • ISSN: 1996-0840
  • DOI: 10.5897/AJPAC
  • Start Year: 2007
  • Published Articles: 357

Full Length Research Paper

Sodium nano-particle effects on montmorillinite structure

A. Bahari*, M. Asgharzadeh and M. Najafikhah
Department of Physics, University of Mazandaran, Iran.
Email: [email protected], [email protected]

  •  Accepted: 28 July 2011
  •  Published: 30 October 2011


The main aim of the work is to study the expansion of the inter-layers clay to see what will happen to the mechanical properties of clays. The expansion of clay layers with sodium nano- particles makes for the exfoliation and dispersion of the crystal in fine particles in the clay positions. Patterns obtained by X-ray diffraction (XRD) of nano montmorillinite (MMT) illustrate that its shape is irregular and the range of sizes is very wide as found by X- powder method. XRD patterns represent significant improvement in acid treatment relative to direct or other methods. Mg-2, Ca-2 and ammonium are the dominant exchangeable cations which show relatively low dispersion degree and large size of the particle. However, in the present work, Na nano - particles have been inserted in the clays and the extension of the destruction clay layers is revealed.


Key words: Nanostructures, nanoclay, montmorillinite, sol – gel method.