BaFe12O19 (BaM) hexaferrite was synthesised through the coprecipitation method. BaFe12O19-activated charcoal-chitosan (BaM-AC-CS) composite ultra-sonication assisted water in oil microemulsion Morphology of BaM hexaferrite, activated charcoal, and BaM-AC-CS powder evaluated using FESEM. The average particle size 60 µm. exhibited a surface area 41.5 m2 g ?1 pore volume 0.041 cm3 g?1. magnetic be...