PREPARATION OF MAGNETIC Co/Mn/Zn/NANOFERRITE / ALGINATE POLYMER COMPOSITE BEADS FOR THE EFFICIENT REMOVAL OF SAFRANIN DYE FROM AQUEOUS SOLUTION

This research article presents the synthesis of magnetic material such as Cobalt doped Mn-Zn ferrites (CMZF) by chemical co-precipitation method. Synthesized Cobalt doped Mn-Zn ferrite was immobilized into sodium alginate polymer blend and fabricated into novel polymer CMZF composite beads. The polymer beads were prepared by ionic polymerization route by using Zn2+. The CMZF alginate bead was characterized with FTIR spectroscopy, SEM and XRD. The synthesized CMZF polymer beads were used for the removal of Safranin dye from aqueous solution by using adsorption technique. The dye removal efficiency was assessed by changing the experimental parameters like concentration, temperature, pH, adsorbent dose and contact time. The Langmuir and Freundlich isotherms were used to describe the suitability of adsorption of dye onto polymeric beads. The kinetic mechanism of the dye uptake process was evaluated by using Pseudo first-order and Pseudo second-order equations. The feasibility and spontaneity of the adsorption process were identified by using the thermodynamic parameters like change in free energy, enthalpy and entropy. © 2023, Politechnica University of Bucharest. All rights reserved.