Ecologically friendly chitosan-montmorillonite bio-nanocomposite as adsorbent for textile dyes from aqueous solutions

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...

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Veröffentlicht in:	Science of sintering 2017, Vol.49 (4), p.419-429
Hauptverfasser:	Jovic-Jovicic, Natasa, Bankovic, Predrag, Mojovic, Zorica, Nedic-Vasiljevic, Bojana, Marinovic, Sanja, Mudrinic, Tihana, Milutinovic-Nikolic, Aleksandra
Format:	Artikel
Sprache:	eng
Schlagworte:	Acids Adsorbents Adsorption adsorption isotherms Biopolymers characterization Chitosan chitosan-montmorillonite bio-nanocomposite Clay Dyes Infrared radiation kinetics Montmorillonite Nanocomposites Reaction kinetics textile dyes
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Beschreibung
Zusammenfassung:	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.
ISSN:	0350-820X 1820-7413
DOI:	10.2298/SOS1704419J