Synthesis of Fe3O4 polyhedra by hydrothermal method: using l-arginine as precipitator

Unusual polyhedral structures of cubic Fe 3 O 4 were fabricated in high yield via a facile hydrothermal method in the presence of a surfactant cetyltrimethyammonium bromide (CTAB). Hexagonal, dodecahedral, truncated octahedral, and octahedral shapes can be prepared by changing the concentration of t...

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Bibliographic Details
Published in:Journal of materials science 2009-08, Vol.44 (16), p.4407-4412
Main Authors: Duan, Lianfeng, Jia, Shusheng, Wang, Yanjun, Chen, Jian, Zhao, Lijun
Format: Article
Language:English
Subjects:
Cetyltrimethylammonium bromide
Characterization and Evaluation of Materials
Classical Mechanics
Crystallography and Scattering Methods
Ferrites
Iron oxides
Magnetite
Materials Science
Polyhedrons
Polymer Sciences
Precipitators
Solid Mechanics
Spinel
Surfactants
Synthesis
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Summary:Unusual polyhedral structures of cubic Fe 3 O 4 were fabricated in high yield via a facile hydrothermal method in the presence of a surfactant cetyltrimethyammonium bromide (CTAB). Hexagonal, dodecahedral, truncated octahedral, and octahedral shapes can be prepared by changing the concentration of the CTAB in l -arginine solutions. In the solution-phase synthesis, both the l -arginine and CTAB were found to be the prime factors for the formation of the polyhedral structures. In addition, room-temperature vibrating sample magnetometer (VSM) testing results indicated that the magnetite synthesized without the addition of CTAB had the highest M s value and the lowest H c value. This synthesis method is also suitable for the preparation of other ferrites with spinel structure.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-009-3667-5