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- Title
Preparation and characterization of Fe<sub>3</sub>O<sub>4</sub>/Ag composite magnetic nanoparticles.
- Authors
Liu, C. H.; Zhou, Z. D.; Yu, X.; Lv, B. Q.; Mao, J. F.; Xiao, D.
- Abstract
Fe3O4 magnetic nanoparticles being used as seeding materials, Ag+ ions on the Fe3O4 magnetic nanoparticles reduced to the metal form by tartaric acid using heated treatment. Thus, Fe3O4/Ag composite core-shell magnetic nanoparticles were synthesized. The products were characterized by transmission electron microscope (TEM) and x-ray diffraction (XRD). Both TEM and XRD results showed that the Ag nanoparticles were well distributed on the surface of Fe3O4 magnetic nanoparticles. The size for Fe3O4/Ag composite magnetic nanoparticles which were spherical shape was ≃40 nm. Furthermore, the magnetic properties of samples were characterized on a vibrating sample magnetometer. Under optimal conditions, Fe3O4/Ag composite nanoparticles showed higher magnetism than pure Fe3O4 nanoparticles.
- Subjects
NANOPARTICLES; COMPOSITE materials; MAGNETIC materials; MAGNETIC properties; TARTARIC acid; TRANSMISSION electron microscopes
- Publication
Inorganic Materials, 2008, Vol 44, Issue 3, p291
- ISSN
0020-1685
- Publication type
Article
- DOI
10.1134/S002016850803014X