Synthesis of magnetite nanoparticles by high energy ball milling

We report on the preparation of magnetite nanoparticles, with size ranging from 12 nm to 20 nm, by high energy ball milling. The synthesis is made using stoichiometric amounts of distilled water and metallic iron powder. The milled powder samples were analyzed by Mossbauer spectroscopy (MS), X-ray d...

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Principais autores:	Carriço, Artur da Silva, Carvalho, J. F., Medeiros, S. N., Morales, M. A., Dantas, Ana L.
Formato:	article
Idioma:	English
Publicado em:	Elsevier B.V.
Assuntos:	Magnetite Iron Water Milling
Endereço do item:	https://repositorio.ufrn.br/jspui/handle/123456789/28747 https://doi.org/10.1016/j.apsusc.2013.01.118
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id	ri-123456789-28747
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spelling	ri-123456789-287472022-12-15T20:52:10Z Synthesis of magnetite nanoparticles by high energy ball milling Carriço, Artur da Silva Carvalho, J. F. Medeiros, S. N. Morales, M. A. Dantas, Ana L. Magnetite Iron Water Milling We report on the preparation of magnetite nanoparticles, with size ranging from 12 nm to 20 nm, by high energy ball milling. The synthesis is made using stoichiometric amounts of distilled water and metallic iron powder. The milled powder samples were analyzed by Mossbauer spectroscopy (MS), X-ray diffraction (XRD) and vibrating sample magnetometry (VSM). Our results indicate that the milling time is a key parameter of the synthesis. By increasing the milling time one achieves high purity magnetite samples. Also, the particle size decreases with the milling time. The sample milled during 10 h contained a fraction of 56 nm metallic Fe particles and 20 nm magnetite particles. By increasing the milling time to 96 h we have obtained a sample that is mainly composed of 12 nm magnetite particles. MS performed at room temperature showed a spectrum consisting of two sextets with hyperfine parameters related to iron ions occupying octahedral (A) and tetrahedral (B) sites. We have used a self-consistent method to investigate the impact of the dipolar interaction to drive the system to a magnetically blocked regime. 2020-04-06T18:27:06Z 2020-04-06T18:27:06Z 2013 article CARVALHO, J. F.; MEDEIROS, S. N.; MORALES, M. A.; DANTAS, A. L.; CARRIÇO, Artur da Silva. Synthesis of magnetite nanoparticles by high energy ball milling. Applied Surface Science, v. 275, p. 84-87, 2013. ISSN 0169-4332. DOI http://dx.doi.org/10.1016/j.apsusc.2013.01.118. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0169433213001669?via%3Dihub. Acesso em: 06 abr. 2020. 0169-4332. https://repositorio.ufrn.br/jspui/handle/123456789/28747 https://doi.org/10.1016/j.apsusc.2013.01.118 en Elsevier B.V.
institution	Repositório Institucional
collection	RI - UFRN
language	English
topic	Magnetite Iron Water Milling
spellingShingle	Magnetite Iron Water Milling Carriço, Artur da Silva Carvalho, J. F. Medeiros, S. N. Morales, M. A. Dantas, Ana L. Synthesis of magnetite nanoparticles by high energy ball milling
description	We report on the preparation of magnetite nanoparticles, with size ranging from 12 nm to 20 nm, by high energy ball milling. The synthesis is made using stoichiometric amounts of distilled water and metallic iron powder. The milled powder samples were analyzed by Mossbauer spectroscopy (MS), X-ray diffraction (XRD) and vibrating sample magnetometry (VSM). Our results indicate that the milling time is a key parameter of the synthesis. By increasing the milling time one achieves high purity magnetite samples. Also, the particle size decreases with the milling time. The sample milled during 10 h contained a fraction of 56 nm metallic Fe particles and 20 nm magnetite particles. By increasing the milling time to 96 h we have obtained a sample that is mainly composed of 12 nm magnetite particles. MS performed at room temperature showed a spectrum consisting of two sextets with hyperfine parameters related to iron ions occupying octahedral (A) and tetrahedral (B) sites. We have used a self-consistent method to investigate the impact of the dipolar interaction to drive the system to a magnetically blocked regime.
format	article
author	Carriço, Artur da Silva Carvalho, J. F. Medeiros, S. N. Morales, M. A. Dantas, Ana L.
author_facet	Carriço, Artur da Silva Carvalho, J. F. Medeiros, S. N. Morales, M. A. Dantas, Ana L.
author_sort	Carriço, Artur da Silva
title	Synthesis of magnetite nanoparticles by high energy ball milling
title_short	Synthesis of magnetite nanoparticles by high energy ball milling
title_full	Synthesis of magnetite nanoparticles by high energy ball milling
title_fullStr	Synthesis of magnetite nanoparticles by high energy ball milling
title_full_unstemmed	Synthesis of magnetite nanoparticles by high energy ball milling
title_sort	synthesis of magnetite nanoparticles by high energy ball milling
publisher	Elsevier B.V.
publishDate	2020
url	https://repositorio.ufrn.br/jspui/handle/123456789/28747 https://doi.org/10.1016/j.apsusc.2013.01.118
work_keys_str_mv	AT carricoarturdasilva synthesisofmagnetitenanoparticlesbyhighenergyballmilling AT carvalhojf synthesisofmagnetitenanoparticlesbyhighenergyballmilling AT medeirossn synthesisofmagnetitenanoparticlesbyhighenergyballmilling AT moralesma synthesisofmagnetitenanoparticlesbyhighenergyballmilling AT dantasanal synthesisofmagnetitenanoparticlesbyhighenergyballmilling
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Synthesis of magnetite nanoparticles by high energy ball milling

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