Surface fractal and structural properties of layered clay minerals monitored by small-angle X-ray scattering and low-temperature nitrogen adsorption experiments

Tímea Pernyeszi, I. Dékány

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

Small-angle X-ray scattering of the clay minerals kaolinite, montmorillonite and illite was studied with a compact Kratky camera. From the scattering function, the correlation length, the Porod constant and the specific surface area were determined. The scattering functions also led to the surface fractal dimension. The pore volume distribution, the adsorption/desorption hysteresis, the specific surface area and the surface fractal dimension of the same samples were also determined by nitrogen adsorption at 77 K.

Original languageEnglish
Pages (from-to)73-78
Number of pages6
JournalColloid & Polymer Science
Volume281
Issue number1
Publication statusPublished - Jan 1 2003

Fingerprint

Fractal dimension
Clay minerals
X ray scattering
Specific surface area
Fractals
clays
Structural properties
fractals
Nitrogen
minerals
Scattering
Bentonite
Kaolin
Adsorption
nitrogen
adsorption
scattering functions
Kaolinite
scattering
Hysteresis

Keywords

  • Clay minerals
  • Illite
  • Kaolinite
  • Montmorillonite
  • Small-angle X-ray scattering

ASJC Scopus subject areas

  • Colloid and Surface Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Polymers and Plastics

Cite this

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AB - Small-angle X-ray scattering of the clay minerals kaolinite, montmorillonite and illite was studied with a compact Kratky camera. From the scattering function, the correlation length, the Porod constant and the specific surface area were determined. The scattering functions also led to the surface fractal dimension. The pore volume distribution, the adsorption/desorption hysteresis, the specific surface area and the surface fractal dimension of the same samples were also determined by nitrogen adsorption at 77 K.

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