New nanosized Gd-Ho-Sm doped M-type strontium hexaferrite for water treatment application: experimental and theoretical investigations.

In this paper, rare-earth doped M-type strontium hexaferrite magnetic nanoparticles SrHo Gd Sm FeO ( = = = 0.01) have been prepared by the sol-gel combustion method for the first time. The properties of the material were investigated using XRD, FTIR spectroscopy, Raman spectroscopy, SEM, UV-Vis spectroscopy, and VSM.

Magnetic and structural properties of single-phase Gd-substituted Co-Mg ferrite nanoparticles.

Nanocrystalline Gd-doped Co-Mg ferrite nanoparticles with the chemical formula CoMgFeGd O ( = 0.02) were prepared by coprecipitation for the first time. The properties of the nanoparticles were investigated by X-ray diffraction, confirming a single-phase, highly crystalline cubic spinel structure in the space group 3̄ and an average crystallite size of 54 nm.