SORBRATION OF CU(II) IONS ON AN-31 ANION EXCHANGE MATERIAL

Abstract

In this work, the adsorption isotherms, kinetics and thermodynamics of Cu²⁺ ion from artificial solutions of the industrially used anionite containing amino groups, AN-31, were studied. For this, solutions with concentrations of 0.03M, 0.04M, 0.05M, 0.06M, 0.07M, 0.08M and 0.1M were prepared using CuSO4·5H2O, and the sorption duration of the metal ion from the prepared artificial solutions was studied in the range of 1-12 hours at temperatures of 293K, 303K, 313K. The change in the concentration of metal ions in the solutions before and after sorption was studied using a spectrophotometer (Shimadzu Corporation. UV-1900i). To analyze the equilibrium processes of Cu²⁺ ion sorption on AN-31 anion exchange materials, Langmuir and Freundlich models of adsorption isotherms were studied. For AN-31 (in the Cl^- form) qe was 87.43 mg/g, 145.06 mg/g, and 205.75 mg/g. To determine how copper ions are bound to the anion, Raman spectra of the anion and the copper-containing anion were measured.