Publication result detail

The rhodamine B intercalation of montmorillonite.

KLIKA, Z.; DOLEŽALOVÁ WEISSMANNOVÁ, H.

Original Title

The rhodamine B intercalation of montmorillonite.

English Title

The rhodamine B intercalation of montmorillonite.

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

Using photometric methods the dissociation constants and weight fractions of rhodamine B dimer in water solutions at different concentrations were determined. The montmorillonite (SWy) samples were fully intercalated with rhodamine B (RhB) solutions at various monomer/dimer ratios. The amount of rhodamine B in fully intercalated montmorillonite (RhB-SWy) increases with increasing concentration of dye in water solutions, i.e., with increasing dimer/monomer ratio. The sum of exchangeable guest cations in RhB-SWy is approximately constant (0.900 meq g(-1)) for all samples, because RhB-SWy samples with prevailing dye monomer also contain higher amounts of non-exchanged alkali elements. The experimental data are supported by calculated structure models that illustrate the changes in RhB-SWy structure depending on monomeric and/or dimeric arrangement of guests. The analysis of the calculated structure models confirmed the existence of two phases with different basal spacings, d approximately 1.8 and approximately 2.3 nm, revealed by X-ray diffraction.

English abstract

Using photometric methods the dissociation constants and weight fractions of rhodamine B dimer in water solutions at different concentrations were determined. The montmorillonite (SWy) samples were fully intercalated with rhodamine B (RhB) solutions at various monomer/dimer ratios. The amount of rhodamine B in fully intercalated montmorillonite (RhB-SWy) increases with increasing concentration of dye in water solutions, i.e., with increasing dimer/monomer ratio. The sum of exchangeable guest cations in RhB-SWy is approximately constant (0.900 meq g(-1)) for all samples, because RhB-SWy samples with prevailing dye monomer also contain higher amounts of non-exchanged alkali elements. The experimental data are supported by calculated structure models that illustrate the changes in RhB-SWy structure depending on monomeric and/or dimeric arrangement of guests. The analysis of the calculated structure models confirmed the existence of two phases with different basal spacings, d approximately 1.8 and approximately 2.3 nm, revealed by X-ray diffraction.

Keywords

montmorillonite, intercalation, interlayer, dye, rhodamine

Key words in English

montmorillonite, intercalation, interlayer, dye, rhodamine

Authors

KLIKA, Z.; DOLEŽALOVÁ WEISSMANNOVÁ, H.

RIV year

2010

Released

01.06.2004

Publisher

Elsevier

Location

Elsevier

ISBN

0021-9797

Periodical

JOURNAL OF COLLOID AND INTERFACE SCIENCE

Volume

275

Number

1

State

United States of America

Pages from

243

Pages to

250

Pages count

7

BibTex

@article{BUT46610,
  author="Zdeněk {Klika} and Helena {Doležalová Weissmannová}",
  title="The rhodamine B intercalation of montmorillonite.",
  journal="JOURNAL OF COLLOID AND INTERFACE SCIENCE",
  year="2004",
  volume="275",
  number="1",
  pages="243--250",
  issn="0021-9797"
}