Abstract
The supported chitosan (CS) adsorbent (FZCS) was successfully prepared by load CS on the BSCS supporter in this work. The adsorbent was characterized by elemental analysis, FT-IR, XRD, TGA, SEM and N2 adsorption-desorption techniques. The results showed the FZCS sorbent displayed the high removal rate (97.95%) for Titan Yellow (TY) anionic dye in aqueous solutions owing to its properties combining amino active functional amino group from the CS itself and higher specific surface area and mesoporous structure from the BSCS support. Isotherm data conform to the Langmuir isothermal model with a maximum adsorption capacity of 120.48 mg/g at 30 °C, suggesting monolayer adsorption of TY on the FZCS sorbent. The data were very well fitted to the pseudo-second-order kinetics. The adsorption capacity of FZCS could maintain about 70% after six cycles. The research indicated that FZCS would be a promising, eco-friendly and effective sorbent for anionic dye wastewater treatment in the near future.
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