A magnetic mesoporous chitosan based core-shells biopolymer for anionic dye adsorption: Kinetic and isothermal study and application of ANN

A magnetic mesoporous chitosan based core-shells biopolymer for anionic dye adsorption: Kinetic and isothermal study and application of ANN

ABSTRACT In this study, Chitosan/Al2O3/Fe3O4 core‐shell composite microsphere (CAMF) was used as an effective sorbent with high adsorption capacity for the removal of anionic azo dye model from aqueous solution. The obtained composite was characterized by XRD, SEM, EDX, and BET analysis. The results...

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Veröffentlicht in:Journal of applied polymer science 2016-06, Vol.133 (22), p.np-n/a
Hauptverfasser: Tanhaei, Bahareh, Ayati, Ali, Lahtinen, Manu, Mahmoodzadeh Vaziri, Behrooz, Sillanpää, Mika
Format: Artikel
Sprache:eng
Schlagworte:
Adsorption
Azo
biopolymers
Chitosan
Diffusion
Dyes
Learning theory
Materials science
Mathematical models
Neural networks
Polymers
renewable polymers
separation techniques
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Zusammenfassung:ABSTRACT In this study, Chitosan/Al2O3/Fe3O4 core‐shell composite microsphere (CAMF) was used as an effective sorbent with high adsorption capacity for the removal of anionic azo dye model from aqueous solution. The obtained composite was characterized by XRD, SEM, EDX, and BET analysis. The results showed the high methyl orange (MO) adsorption in a wide pH range of 4–10 and the optimum adsorbent dosage was obtained 0.6 g L−1. It is indicated that the equilibrium data followed the Langmuir isotherm model and the adsorption kinetic was well fitted with pseudo‐second‐order kinetic model. Also, the adsorption kinetic was controlled by the film diffusion and intra‐particle diffusion, simultaneously. It is revealed that by increasing the particle size from
ISSN:0021-8995
1097-4628
DOI:10.1002/app.43466