Adsorption of nicotine from aqueous solutions on montmorillonite and acid-modified montmorillonite

Adsorption of nicotine from aqueous solutions on montmorillonite and acid-modified montmorillonite

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....

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Veröffentlicht in:Science of sintering 2019, Vol.51 (1), p.93-100
Hauptverfasser: Ilic, Irena, Jovic-Jovicic, Natasa, Bankovic, Predrag, Mojovic, Zorica, Loncarevic, Davor, Grzetic, Ivan, Milutinovic-Nikolic, Aleksandra
Format: Artikel
Sprache:eng
Schlagworte:
acid modification
Acids
Adsorbents
Adsorption
Aqueous solutions
Bands
Contamination
Infrared spectroscopy
Isotherms
Montmorillonite
Nicotine
Nitrogen
Spectrum analysis
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Zusammenfassung: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.
ISSN:0350-820X
1820-7413
DOI:10.2298/SOS1901093I