What factors are crucial in the synthesis of magnetic adsorbents using the co-precipitation method? For instance, in the synthesis of ferrites, which is the primary factor associated with the increase in magnetism (Divalent metal used for synthesis, Precipitation temperature, Calcination temperature, Calcination time)?
Yago Neco Teixeira
We synthesized ferrites by co-deposition together with surfactants. This process is one of the stages of obtaining nanoparticles from waste: used old magnets, poor ores, processing of iron solutions after cleaning with acid for painting. We obtained mixtures of ferrites with metal hydroxides, salts of iron ions and surfactants. There was a decrease in the magnetic properties compared to pure nanoparticles and bulk ferrites. After annealing up to 600 0C, the size of the nanoparticles increased.
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