Production of magnetite nanoparticles from Ethiopian iron ore using solvent extraction and studying parameters that affect crystallite size
Crystallite size is one of the fundamental factors controlling the magnetic property of magnetic nanoparticles. In this study, magnetite nanoparticles were produced from Ethiopian iron ore and the effect of solvent extraction parameters on the crystallite size were investigated by considering classi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/abc2df |
| _version_ | 1797746860380651520 |
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| author | Kebede Gamo Sebehanie Alberto Velázquez del Rosario Abubeker Yimam Ali Olu Emmanuel Femi |
| author_facet | Kebede Gamo Sebehanie Alberto Velázquez del Rosario Abubeker Yimam Ali Olu Emmanuel Femi |
| author_sort | Kebede Gamo Sebehanie |
| collection | DOAJ |
| description | Crystallite size is one of the fundamental factors controlling the magnetic property of magnetic nanoparticles. In this study, magnetite nanoparticles were produced from Ethiopian iron ore and the effect of solvent extraction parameters on the crystallite size were investigated by considering classical nucleation theory. First, the iron ore was crushed and unwanted gangues were discarded, then followed by further grinding to get a black powder. Finally, the magnetite nanoparticles were produced using solvent extraction and co-precipitation method. For the solvent extraction, tri-butyl phosphate (TBP) and tri-octyl phosphine oxide (TOPO) was used as an extractant, while 2-ethyl-hexanol, and heptanol were used as a modifier and diluent, respectively. The synthesized nanoparticles was characterized using XRD, SEM (EDS), TGA, and FTIR. The results show that leaching temperature and modifier concentration have a significant effect on the crystallite size of the nanoparticles. Comparison of the crystallite size using the Scherrer equation reveals the mean crystallite size of the sample extracted using TBP is smaller than the sample extracted using TOPO. |
| first_indexed | 2024-03-12T15:42:51Z |
| format | Article |
| id | doaj.art-2251090d9968410d96fedee106c16132 |
| institution | Directory Open Access Journal |
| issn | 2053-1591 |
| language | English |
| last_indexed | 2024-03-12T15:42:51Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj.art-2251090d9968410d96fedee106c161322023-08-09T15:52:32ZengIOP PublishingMaterials Research Express2053-15912020-01-0171010501610.1088/2053-1591/abc2dfProduction of magnetite nanoparticles from Ethiopian iron ore using solvent extraction and studying parameters that affect crystallite sizeKebede Gamo Sebehanie0https://orcid.org/0000-0001-8745-3632Alberto Velázquez del Rosario1Abubeker Yimam Ali2Olu Emmanuel Femi3https://orcid.org/0000-0002-6069-7968Faculty of Material Science and Engineering, Jimma University Institute of Technology , P. Box 378 Jimma, Ethiopia; Ethiopian Biotechnology Institute, Nanotechnology Directorate PO Box 5954, Addis Ababa, EthiopiaFederal Technical and Vocational, Education and Training Institute, Addis Ababa, EthiopiaSchool of Chemical and Bio Engineering, AAiT, Addis Ababa University , PO Box 1176, Addis Ababa, EthiopiaFaculty of Material Science and Engineering, Jimma University Institute of Technology , P. Box 378 Jimma, EthiopiaCrystallite size is one of the fundamental factors controlling the magnetic property of magnetic nanoparticles. In this study, magnetite nanoparticles were produced from Ethiopian iron ore and the effect of solvent extraction parameters on the crystallite size were investigated by considering classical nucleation theory. First, the iron ore was crushed and unwanted gangues were discarded, then followed by further grinding to get a black powder. Finally, the magnetite nanoparticles were produced using solvent extraction and co-precipitation method. For the solvent extraction, tri-butyl phosphate (TBP) and tri-octyl phosphine oxide (TOPO) was used as an extractant, while 2-ethyl-hexanol, and heptanol were used as a modifier and diluent, respectively. The synthesized nanoparticles was characterized using XRD, SEM (EDS), TGA, and FTIR. The results show that leaching temperature and modifier concentration have a significant effect on the crystallite size of the nanoparticles. Comparison of the crystallite size using the Scherrer equation reveals the mean crystallite size of the sample extracted using TBP is smaller than the sample extracted using TOPO.https://doi.org/10.1088/2053-1591/abc2dfMagnetite nanoparticlesLeaching temperatureModifiers |
| spellingShingle | Kebede Gamo Sebehanie Alberto Velázquez del Rosario Abubeker Yimam Ali Olu Emmanuel Femi Production of magnetite nanoparticles from Ethiopian iron ore using solvent extraction and studying parameters that affect crystallite size Materials Research Express Magnetite nanoparticles Leaching temperature Modifiers |
| title | Production of magnetite nanoparticles from Ethiopian iron ore using solvent extraction and studying parameters that affect crystallite size |
| title_full | Production of magnetite nanoparticles from Ethiopian iron ore using solvent extraction and studying parameters that affect crystallite size |
| title_fullStr | Production of magnetite nanoparticles from Ethiopian iron ore using solvent extraction and studying parameters that affect crystallite size |
| title_full_unstemmed | Production of magnetite nanoparticles from Ethiopian iron ore using solvent extraction and studying parameters that affect crystallite size |
| title_short | Production of magnetite nanoparticles from Ethiopian iron ore using solvent extraction and studying parameters that affect crystallite size |
| title_sort | production of magnetite nanoparticles from ethiopian iron ore using solvent extraction and studying parameters that affect crystallite size |
| topic | Magnetite nanoparticles Leaching temperature Modifiers |
| url | https://doi.org/10.1088/2053-1591/abc2df |
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