Experimental Investigation of the Coprecipitation Method: An Approach to Obtain Magnetite and Maghemite Nanoparticles with Improved Properties
Joint Authors
Peternele, Wilson Sacchi
Monge Fuentes, Victoria
Fascineli, Maria Luiza
Rodrigues da Silva, Jaqueline
Silva, Renata Carvalho
Lucci, Carolina Madeira
Bentes de Azevedo, Ricardo
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-19
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Iron oxides that exhibit magnetic properties have been widely studied not only from an academic standpoint, but also for numerous applications in different fields of knowledge, such as biomedical and technological research.
In this work, magnetite and maghemite nanoparticles were synthesized by chemical coprecipitation of FeCl2·4H2O and FeCl3·6H2O (proportion of 1 : 2) in three different cases using two bases (sodium hydroxide and hydroxide ammonium) as precipitants.
The chemical coprecipitation method was selected for its simplicity, convenience, reproducibility, and low cost in the use of glassware.
The nanostructured materials were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and magnetometry (VSM).
The objective of this work is to study the variation in the morphological characteristics and physical properties of nanoparticles magnetic as a function of the different production processes.
As observed by TEM, the materials obtained from the precipitating agent NH4OH are more uniform than those obtained with NaOH.
From XRD pattern analysis, it appears that the obtained materials correspond to magnetite and maghemite and, from magnetometry VSM analysis, show high magnetization as a function of the magnetic field at room temperature, indicating that these materials are superparamagnetic.
American Psychological Association (APA)
Peternele, Wilson Sacchi& Monge Fuentes, Victoria& Fascineli, Maria Luiza& Rodrigues da Silva, Jaqueline& Silva, Renata Carvalho& Lucci, Carolina Madeira…[et al.]. 2014. Experimental Investigation of the Coprecipitation Method: An Approach to Obtain Magnetite and Maghemite Nanoparticles with Improved Properties. Journal of Nanomaterials،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1041801
Modern Language Association (MLA)
Peternele, Wilson Sacchi…[et al.]. Experimental Investigation of the Coprecipitation Method: An Approach to Obtain Magnetite and Maghemite Nanoparticles with Improved Properties. Journal of Nanomaterials No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1041801
American Medical Association (AMA)
Peternele, Wilson Sacchi& Monge Fuentes, Victoria& Fascineli, Maria Luiza& Rodrigues da Silva, Jaqueline& Silva, Renata Carvalho& Lucci, Carolina Madeira…[et al.]. Experimental Investigation of the Coprecipitation Method: An Approach to Obtain Magnetite and Maghemite Nanoparticles with Improved Properties. Journal of Nanomaterials. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1041801
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1041801