pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method
This work aimed at putting in evidence the influence of the pH on the chemical nature and properties of the synthesized magnetic nanocomposites. Saturation magnetization measurements evidenced a marked difference of the magnetic behavior of samples, depending on the final pH of the solution after re...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2010-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300006 |
| _version_ | 1819327383725932544 |
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| author | Ângela L. Andrade Diana M. Souza Márcio C. Pereira José D. Fabris Rosana Z. Domingues |
| author_facet | Ângela L. Andrade Diana M. Souza Márcio C. Pereira José D. Fabris Rosana Z. Domingues |
| author_sort | Ângela L. Andrade |
| collection | DOAJ |
| description | This work aimed at putting in evidence the influence of the pH on the chemical nature and properties of the synthesized magnetic nanocomposites. Saturation magnetization measurements evidenced a marked difference of the magnetic behavior of samples, depending on the final pH of the solution after reaction. Magnetite and maghemite in different proportions were the main magnetic iron oxides actually identified. Synthesis with final pH between 9.7-10.6 produced nearly pure magnetite with little or no other associated iron oxide. Under other synthetic conditions, goethite also appears in proportions that depended upon the pH of the synthesis medium. |
| first_indexed | 2024-12-24T13:09:58Z |
| format | Article |
| id | doaj.art-ffaa4e5801ee46d19b20848193686f19 |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-24T13:09:58Z |
| publishDate | 2010-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-ffaa4e5801ee46d19b20848193686f192022-12-21T16:53:54ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642010-01-0133352452710.1590/S0100-40422010000300006pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation methodÂngela L. AndradeDiana M. SouzaMárcio C. PereiraJosé D. FabrisRosana Z. DominguesThis work aimed at putting in evidence the influence of the pH on the chemical nature and properties of the synthesized magnetic nanocomposites. Saturation magnetization measurements evidenced a marked difference of the magnetic behavior of samples, depending on the final pH of the solution after reaction. Magnetite and maghemite in different proportions were the main magnetic iron oxides actually identified. Synthesis with final pH between 9.7-10.6 produced nearly pure magnetite with little or no other associated iron oxide. Under other synthetic conditions, goethite also appears in proportions that depended upon the pH of the synthesis medium.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300006magnetic nano-compositesmagnetiteMössbauer spectroscopy |
| spellingShingle | Ângela L. Andrade Diana M. Souza Márcio C. Pereira José D. Fabris Rosana Z. Domingues pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method Química Nova magnetic nano-composites magnetite Mössbauer spectroscopy |
| title | pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method |
| title_full | pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method |
| title_fullStr | pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method |
| title_full_unstemmed | pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method |
| title_short | pH effect on the synthesis of magnetite nanoparticles by the chemical reduction-precipitation method |
| title_sort | ph effect on the synthesis of magnetite nanoparticles by the chemical reduction precipitation method |
| topic | magnetic nano-composites magnetite Mössbauer spectroscopy |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300006 |
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