Effect of cation exchanged bentonites (CEBs) on the aggregation of a cresol based dye

Eren E., Afsin B.

DYES AND PIGMENTS, vol.72, no.2, pp.228-232, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 72 Issue: 2
  • Publication Date: 2007
  • Doi Number: 10.1016/j.dyepig.2005.08.016
  • Journal Name: DYES AND PIGMENTS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.228-232
  • Keywords: bromocresol green, J-aggregate, clay, absorption spectra, cation exchanged bentonite, LAYER CHARGE-DENSITY, SOLID ACID CATALYST, METHYLENE-BLUE, MONTMORILLONITE, ADSORPTION, ORIENTATION, PH
  • Ondokuz Mayıs University Affiliated: Yes

Abstract

The effect of raw and cation exchanged bentonite (CEB) samples on the aggregation of a cresol based dye, bromocresol green, was studied by spectrophotometric method. The changes in the absorption spectra were explained in terms of the layer charge of the clay surfaces which controls the stability of the dye aggregates. (c) 2005 Elsevier Ltd. All rights reserved.