Magnetic enrichment behavior of monodispersed MFe2O4 nanoferrites (M= Mg, Ca, Ni, Co, and Cu)
| Autor: | Evgeny V. Rebrov, Pengzhao Gao, Xiao-pan Liu, Hang-bo Zheng, Zhi-bo Huang, Jin Wen |
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| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Ferrite nanoparticles Process Chemistry and Technology Analytical chemistry Nanoparticle 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Magnetic field Finite element analysis software Adsorption 0103 physical sciences Materials Chemistry Ceramics and Composites Ferrite (magnet) Freundlich equation 0210 nano-technology |
| Zdroj: | Ceramics International. 45:15980-15989 |
| ISSN: | 0272-8842 |
| Popis: | The magnetic enrichment behavior of monodispersed MFe2O4 (M = Mg, Ca, Ni, Co, and Cu) ferrite nanoparticles with different size (10–130 nm) on the surface of a 15 mm o.d. NdFeB-N40 magnetic rod has been investigated. The materials were synthesized by a modified sol-gel method. They were characterized by XRD, TEM, and VSM. The magnetic field of the rod was modelled numerically using a finite element analysis software to obtain the input data for the magnitude of magnetic force. Three adsorption models can be used to describe the enrichment mechanism of ferrite nanoparticle depending on the magnetic permeability: (i) Freundlich adsorption model at low magnetic permeability ( 100 μemu/Oe) leading to the enrichment percentage above 90%. |
| Databáze: | OpenAIRE |
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