Preparation of silver nanoparticles in liquid crystalline systems

Rita Patakfalvi, Imre Dékány

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43 Citations (Scopus)

Abstract

Silver nanoparticles preparation and the aggregation stability of the particles was investigated in lamellar liquid crystalline systems. A liquid crystal of HDTABr/pentanol/water was first prepared. The water content was next increased while keeping the mass ratio of HDTABr and pentanol constant. Silver nanoparticles were produced by replacing the aqueous phase by Ag sols of various concentrations (0.5-5×10-3 mol/l) or by an in situ preparation method, i.e., interlamellar reduction of Ag+ ions in the liquid crystalline phase. The stability of the silver nanoparticles was monitored by UV-VIS spectroscopy and TEM. The particle size ranged from 5 to 44 nm. The kinetic of silver nanoparticle aggregation was investigated. The effect of nanoparticles on structural ordering in liquid crystals was studied by XRD measurements and it was established that the lamellar distance (dL) was only slightly altered.

Original languageEnglish
Pages (from-to)461-470
Number of pages10
JournalColloid and Polymer Science
Volume280
Issue number5
DOIs
Publication statusPublished - Dec 1 2002

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Keywords

  • Liquid crystalline system
  • Silver nanoparticles
  • TEM
  • UV-VIS spectroscopy
  • X-ray diffraction

ASJC Scopus subject areas

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

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