The effect of nanoparticle growth on rheological properties of silica and silicate dispersions

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

CdS and ZnS nanoparticles were prepared in the solid-liquid interfacial adsorption layer as a nanophase reactor. The substrates were hydrophilic and hydrophobic aerosils and hydrophilic layer silicates dispersed in ethanol-cyclohexane mixtures. The growth of particles at various surface concentration of precursor ions was monitored by absorption spectroscopy, band-gap-energy measurements and particle diameter measurements. Also, the rheological properties of nanoparticle-support composites in organic and aqueous dispersions were measured. The energy of separation between the nanoparticles depended on the particle diameter. The intercalation of nanoparticles in the layered silicates yielded a nanostructured two-phase system. The presence of semiconductive subcolloids was proven by transmission electron microscopy measurements, which offer an excellent possibility for the determination of the particle size distribution.

Original languageEnglish
Pages (from-to)211-219
Number of pages9
JournalColloid & Polymer Science
Volume278
Issue number3
Publication statusPublished - 2000

Fingerprint

Silicates
Dispersions
Silicon Dioxide
silicates
Silica
Nanoparticles
silicon dioxide
nanoparticles
Electric power measurement
binary systems (materials)
Cyclohexane
Intercalation
particle size distribution
Absorption spectroscopy
intercalation
Particle size analysis
cyclohexane
absorption spectroscopy
Energy gap
Ethanol

Keywords

  • Aerosils
  • CdS
  • Nanoparticles
  • Nanophase reactors
  • ZnS

ASJC Scopus subject areas

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

Cite this

@article{ee3a218c0370419a9a0aedc3134bbafe,
title = "The effect of nanoparticle growth on rheological properties of silica and silicate dispersions",
abstract = "CdS and ZnS nanoparticles were prepared in the solid-liquid interfacial adsorption layer as a nanophase reactor. The substrates were hydrophilic and hydrophobic aerosils and hydrophilic layer silicates dispersed in ethanol-cyclohexane mixtures. The growth of particles at various surface concentration of precursor ions was monitored by absorption spectroscopy, band-gap-energy measurements and particle diameter measurements. Also, the rheological properties of nanoparticle-support composites in organic and aqueous dispersions were measured. The energy of separation between the nanoparticles depended on the particle diameter. The intercalation of nanoparticles in the layered silicates yielded a nanostructured two-phase system. The presence of semiconductive subcolloids was proven by transmission electron microscopy measurements, which offer an excellent possibility for the determination of the particle size distribution.",
keywords = "Aerosils, CdS, Nanoparticles, Nanophase reactors, ZnS",
author = "J. N{\'e}meth and I. D{\'e}k{\'a}ny",
year = "2000",
language = "English",
volume = "278",
pages = "211--219",
journal = "Kolloid Zeitschrift",
issn = "0303-402X",
publisher = "Springer Verlag",
number = "3",

}

TY - JOUR

T1 - The effect of nanoparticle growth on rheological properties of silica and silicate dispersions

AU - Németh, J.

AU - Dékány, I.

PY - 2000

Y1 - 2000

N2 - CdS and ZnS nanoparticles were prepared in the solid-liquid interfacial adsorption layer as a nanophase reactor. The substrates were hydrophilic and hydrophobic aerosils and hydrophilic layer silicates dispersed in ethanol-cyclohexane mixtures. The growth of particles at various surface concentration of precursor ions was monitored by absorption spectroscopy, band-gap-energy measurements and particle diameter measurements. Also, the rheological properties of nanoparticle-support composites in organic and aqueous dispersions were measured. The energy of separation between the nanoparticles depended on the particle diameter. The intercalation of nanoparticles in the layered silicates yielded a nanostructured two-phase system. The presence of semiconductive subcolloids was proven by transmission electron microscopy measurements, which offer an excellent possibility for the determination of the particle size distribution.

AB - CdS and ZnS nanoparticles were prepared in the solid-liquid interfacial adsorption layer as a nanophase reactor. The substrates were hydrophilic and hydrophobic aerosils and hydrophilic layer silicates dispersed in ethanol-cyclohexane mixtures. The growth of particles at various surface concentration of precursor ions was monitored by absorption spectroscopy, band-gap-energy measurements and particle diameter measurements. Also, the rheological properties of nanoparticle-support composites in organic and aqueous dispersions were measured. The energy of separation between the nanoparticles depended on the particle diameter. The intercalation of nanoparticles in the layered silicates yielded a nanostructured two-phase system. The presence of semiconductive subcolloids was proven by transmission electron microscopy measurements, which offer an excellent possibility for the determination of the particle size distribution.

KW - Aerosils

KW - CdS

KW - Nanoparticles

KW - Nanophase reactors

KW - ZnS

UR - http://www.scopus.com/inward/record.url?scp=0343339951&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0343339951&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0343339951

VL - 278

SP - 211

EP - 219

JO - Kolloid Zeitschrift

JF - Kolloid Zeitschrift

SN - 0303-402X

IS - 3

ER -