Preparation and characterization of Fe3O4/Ag composite magnetic nanoparticles |
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| Authors: | C. H. Liu Z. D. Zhou X. Yu B. Q. Lv J. F. Mao D. Xiao |
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| Affiliation: | (1) College of Chemistry, Sichuan University, Chengdu, 610064, People’s Republic of China;(2) College of Chemical Engineering, Sichuan University, Chengdu, 610065, People’s Republic of China |
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| 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. The text was submitted by the authors in English. |
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