Ecologically Friendly Chitosan-montmorillonite Bio-nanocomposite as Adsorbent for Textile Dyes from Aqueous Solutions

  • Nataša Jović-Jovičić University of Belgrade- Institute of Chemistry, Technology and Metallurgy, Center for Catalysis and Chemical Engineering
  • Predrag Banković University of Belgrade- Institute of Chemistry, Technology and Metallurgy, Center for Catalysis and Chemical Engineering
  • Zorica Mojović University of Belgrade- Institute of Chemistry, Technology and Metallurgy, Center for Catalysis and Chemical Engineering
  • Bojana Nedić-Vasiljević University of Belgrade, Faculty of Physical Chemistry
  • Sanja Marinović University of Belgrade- Institute of Chemistry, Technology and Metallurgy, Center for Catalysis and Chemical Engineering
  • Tihana Mudrinić University of Belgrade- Institute of Chemistry, Technology and Metallurgy, Center for Catalysis and Chemical Engineering
  • Aleksandra Milutinović-Nikolić University of Belgrade- Institute of Chemistry, Technology and Metallurgy, Center for Catalysis and Chemical Engineering

Abstract

The bio-nanocomposite of montmorillonite and natural biopolymer chitosan (C-MM) was synthesized. Intercalation of chitosan in form of monolayer into the interlamellar space of montmorillonite was confirmed by XRD and IR analysis. The adsorption of textile dyes: Acid Yellow 99 (AY99), Acid Orange 10 (AO10) and Reactive Black 5 (RB5) onto C-MM was investigated. The adsorption was performed with the respect to adsorption time, pH and initial dye concentration. The kinetics of adsorption obeyed pseudo-second-order of kinetics and was the most efficient in acidic pH. Langmuir model best described the adsorption of AY99 and AO10 , while RB5 adsorption isotherm was best fitted with Freundlich model.

Published
2017-12-13
Issue
Vol 49 No 4 (2017)
Section
Articles

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