Abstract
La3+ doped ZnFe2O4 nanostructures were prepared by the two-step sol gel method in the presence of Zn(NO3)2·6H2O, Fe(NO3)3·9H2O, and La(NO3)3 in an aqueoussolution. Besides, the effect of different type of surfactants such as sodium dodecyl sulfate, cetrimonium bromide, polyvinyl alcohol, oleic acid, and polyvinylpyrrolidone on the morphology and particle size of final product was investigated. Furthermore, the effect of La3+ dope on the magnetic properties of ZnFe2O4 nanostructures was investigated. VSM results demonstrated the dope concentration play an important role on the magnetic properties of final products. According to the XRD results, the lattice parameter decreases with added La3+ from 8.443 to 5.5203 A, thus obeying Vegard’s law. The products were characterized by XRD, SEM, EDX, VSM, TEM, UV–visible, and EDS.
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