EQUILIBRIUM AND KINETICS STUDIES REGARDING THE ADSORPTION OF COPPER(II) IONS BY VARIOUS TYPES OF CHITOSAN BEADS

作者：Vlad Oros B; Dascalu D; Dudas Z; Popovici H; Preda G; Ostafe V^*

来源：Digest Journal of Nanomaterials and Biostructures, 2013, 8(3): 917-927.

• Chitosan
• Tripolyphosphate
• Copper removal
• Adsorption

Two different types of chitosan (low and medium molecular weight) and two different methods were used to prepare chitosan beads. Their efficiency for the removal of Cu(II) ions from aqueous solution was investigated. In order to characterize the chitosan beads BET surface area analysis, Fourier transform infrared spectroscopy and thermogravimetric techniques were used. All types of chitosan beads presented good adsorption capacities. Langmuir and Freundlich isotherms theories were used to fit the equilibrium adsorption data. Adsorption of Cu(II) ions on all types of chitosan beads followed pseudo-second order kinetics.

• 出版日期2013-9