Adsorption of Nicotine from Aqueous Solutions on Montmorillonite and Acid–Modified Montmorillonite

Authors

  • Irena Ilić University of Belgrade – Institute of General and Physical Chemistry
  • 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
  • Davor Lončarević University of Belgrade – Institute of Chemistry, Technology and Metallurgy, Center for Catalysis and Chemical Engineering
  • Ivan Gržetić University of Belgrade – Faculty of Chemistry
  • Aleksandra Milutinović-Nikolić University of Belgrade – Institute of Chemistry, Technology and Metallurgy, Center for Catalysis and Chemical Engineering

Abstract

Montmorillonite (Mt) and acid modified montmorillonite (MtA) were tested as nicotine adsorbents. The samples were characterized using FT-IR spectroscopy and low temperature nitrogen physisorption. Nicotine adsorption was performed with respect to contact time, pH and initial nicotine concentration. The kinetics of adsorption obeyed the pseudo-second-order kinetics. The optimal pH values for nicotine adsorption were 6 and 9 for Mt and MtA, respectively. The isotherms related to adsorption on Mt at pH = 6 and 9 as well as for MtA at pH=6 were best fitted with Sips isotherm model, while adsorption onto MtA at pH=9 obeyed Langmuir isotherm model.

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Published

2019-01-01

Issue

Vol. 51 No. 1 (2019)

Section

Articles

License

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