Surface modification of Fe3O4 nanoparticles and their magnetic properties |
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| Authors: | Hao Yan Chen-xia You Zhen-wei Song Ben-wei Yu Yue Shen |
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| Affiliation: | School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China |
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| Abstract: | Fe3O4 magnetic nanoparticles were synthesized by the hydrothermal method, and the influences of the surfactant sodium bis(2-ethylhexyl) sulfosuccinate (AOT) on the particles were investigated. The structure, morphology, and magnetic properties of the products were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FT-IR), and vibrating sample magnetometer (VSM). It is confirmed that the as-prepared nanoparticles have been modified by using the surfactant during the synthesis process. The amount of the surfactant has an effect on the size, the dispersal, and the magnetic properties of the particles. Besides, the mechanisms of the influences were also discussed. |
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| Keywords: | surfactant magnetite nanoparticle hydrothermal particle size dispersion magnetism |
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