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Adsorption of Brilliant Green from Aqueous Solutions onto Crosslinked Chitosan Graft Copolymers
In this study, graft copolymerization of itaconic acid (IA) and crotonic acid (CA) onto the crosslinked chitosan beads were carried out using ammonium persulfate as initiator. Grafted chitosan beads were characterized by FT‐IR analysis and grafting percentage determination. Grafting efficiency and add‐on percentages values of grafted chitosan beads were determined as 23–29 and 32–47%, respectively. Then, equilibrium isotherms and kinetics of brilliant green adsorption onto grafted chitosan beads were investigated. The results indicated that the pseudo‐second‐order kinetic model fitted better than the data obtained from pseudo‐first‐order model for the adsorption of brilliant green onto grafted chitosan beads. The fit of data for brilliant green (BG) adsorption onto grafted chitosan beads suggested that the Langmuir model gave closer fittings than the Freundlich model.
Adsorption of Brilliant Green from Aqueous Solutions onto Crosslinked Chitosan Graft Copolymers
In this study, graft copolymerization of itaconic acid (IA) and crotonic acid (CA) onto the crosslinked chitosan beads were carried out using ammonium persulfate as initiator. Grafted chitosan beads were characterized by FT‐IR analysis and grafting percentage determination. Grafting efficiency and add‐on percentages values of grafted chitosan beads were determined as 23–29 and 32–47%, respectively. Then, equilibrium isotherms and kinetics of brilliant green adsorption onto grafted chitosan beads were investigated. The results indicated that the pseudo‐second‐order kinetic model fitted better than the data obtained from pseudo‐first‐order model for the adsorption of brilliant green onto grafted chitosan beads. The fit of data for brilliant green (BG) adsorption onto grafted chitosan beads suggested that the Langmuir model gave closer fittings than the Freundlich model.
Adsorption of Brilliant Green from Aqueous Solutions onto Crosslinked Chitosan Graft Copolymers
Özkahraman, Bengi (author) / Bal, Ayça (author) / Acar, Işıl (author) / Güçlü, Gamze (author)
CLEAN – Soil, Air, Water ; 39 ; 1001-1006
2011-11-01
6 pages
Article (Journal)
Electronic Resource
English
Adsorption of Brilliant Green from Aqueous Solutions onto Crosslinked Chitosan Graft Copolymers
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