Investigation of benzoic acid adsorption on to ODTMA-bentonite by response surface optimization

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Kapucu H., Yildiz N., Gonulsen R., Calimi A.

ADSORPTION SCIENCE & TECHNOLOGY, vol.20, no.8, pp.729-740, 2002 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 8
  • Publication Date: 2002
  • Doi Number: 10.1260/026361702321104237
  • Journal Name: ADSORPTION SCIENCE & TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.729-740
  • Ankara University Affiliated: Yes

Abstract

The adsorption of benzoic acid on to a modified bentonite (ODTMA-bentonite) was studied. ODTMA-bentonite was synthesized by the incorporation of a quaternary ammonium surfactant (octadecyltrimethylammonium bromide) on to Cankiri sodium bentonite (CNa-B) with a cation-exchange capacity of 85 mequiv/100 g clay. A 21 full factorial central composite experimental design followed by multi-stage Monte-Carlo optimization was used in designing the experiments and analyzing the results. This procedure limited the number of actual experiments performed whilst allowing for possible interactions between the four parameters studied.