Desarrollo de perlas bio-magnéticas a partir de quitosano-manganeso-ferrita aplicado a la remoción de antimonio en fase acuosa

Abstract

Antimony (Sb) is considered as a strong polluting metal, it could be generated by mining activities and reach the water streams. The objective of this investigation was to develop a magnetic biopolymer adsorbent to be applied in the removal of Sb from aqueous phase. The material adsorbent was synthetized with chitosan and spinel ferrite to obtain bio-magnetic beads of chitosan-manganese-ferrite or PFC. For the preparation of this material, the ratio 1: 0.5 of chitosan (CS) and spinal ferrite (F) diluted in acetic acid was blended, maintaining a constant temperature of 40 °C. This suspension was drop by drop added to NaOH solution at pH 8.5 with the help of a peristaltic pump, and the beads were formed, finally the beads were dried in an oven at a temperature of 40 °C for 24 hours.