Estimate of the Nanoparticles Size of Magnetite Produced by Co-Precipitation Method

Mara Carolina do Carmo Paresque; Elizabeth Mendes de Oliveira; Marina de Almeida S.C. Liuzzi; José Adilson de Castro; Marcos Flavio de Campos

doi:10.4028/www.scientific.net/MSF.930.90

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HomeMaterials Science ForumMaterials Science Forum Vol. 930Estimate of the Nanoparticles Size of Magnetite...

Estimate of the Nanoparticles Size of Magnetite Produced by Co-Precipitation Method

Abstract:

In the present study, Fe₃O₄ nanoparticles type/core layer were synthesized by co-precipitation wet method and coated with a polymer mixture of polyethylene glycol (PEG). It was performed a study about the effect of duration in maceration time on the final size of nanoparticles in in order to get reaching the maximum condition of disintegration of the crystals. The samples were synthesized according to the same procedure and amount of reactants used synthetic sequence for all samples, only varying the time spent by each sample maceration process done after synthesis. The different times for the maceration samples were 3 minutes, 5 minutes, 7 minutes, 10 minutes, 12 minutes, 20 minutes and finally 30 minutes. The nanoparticles were characterized by Nanosight, DR-X, rietvield analysis and hysteresis curves plotter techniques. The results showed that the grain size of the particles stabilizes at maceration times of more than 20 minutes. The samples presented a satisfactory hysteresis curve indicating the presence of superparamagnetic behavior expected in hyperthermia treatment.

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22nd Brazilian Conference on Materials Science and Engineering

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Materials Science Forum (Volume 930)

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90-94

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https://doi.org/10.4028/www.scientific.net/MSF.930.90

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September 2018

Authors:

Mara Carolina do Carmo Paresque, Elizabeth Mendes de Oliveira, Marina de Almeida S.C. Liuzzi, José Adilson de Castro, Marcos Flavio de Campos

Keywords:

Co-Precipitation, Magnetic Nanoparticles, Magnetite, Polyethylene Glycol, Varied Maceration Times

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