Citas bibligráficas
Robles, K., (2023). Propiedades estructurales y magnéticas de la nanomagnetitas sintetizadas por el método hidrotermal a diferentes tiempos de irradiación con microondas de 160 W [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/20599
Robles, K., Propiedades estructurales y magnéticas de la nanomagnetitas sintetizadas por el método hidrotermal a diferentes tiempos de irradiación con microondas de 160 W []. PE: Universidad Nacional de Trujillo; 2023. https://hdl.handle.net/20.500.14414/20599
@mastersthesis{renati/1047688,
title = "Propiedades estructurales y magnéticas de la nanomagnetitas sintetizadas por el método hidrotermal a diferentes tiempos de irradiación con microondas de 160 W",
author = "Robles Melosevich, Kamilo Ysrael Michael",
publisher = "Universidad Nacional de Trujillo",
year = "2023"
}
The present research aimed to study the irradiation time effect upon the magnetic and structural properties of the synthesized nanomagnetic the microwave-assisted hydrothermal method. Starting from precursors (aqueous solutions) with Fe+3 and Fe+2 ion sources, a constant power of 160, varying the time of irradiation of synthesis form 1 to 2, 3, 4, 5 and 6 min. the aim was to determine the irradiation time effect upon the structural properties (crystallinity and particle size) and magnetics of the magnetite nanoparticles. The X-rays studies (XRD) determined that the magnetite nanoparticles were crystalized in an inverse spinel-type FCC cubic system, with an average lattice parameter of 0,8329 nm, from the influence of the synthesis irradiation time from 2 min to 5 min the crystallite size increases from 11.11 nm to 11,91 nm. The FTIR analysis confirmed the Fe-O bond and the functional absence of residual groups. The result of Vibrating-sample magnetometry (VSM) revealed that the saturation magnetization does not show a definite pattern with the synthesis irradiation time increasing, the saturation magnetization is between 53.37 emu/g and 63.60 emu/g. The remanent magnetization has an increase behaviour between 4.04 emu/g and 5.48 emu/g. Likewise, the coercivity presents an increasing behavior between 47.37 emu/g and 71.23 emu/g. The minimum magnetization showed an increasing behavior as a function of the increase of the synthesis irradiation time. These data indicates that the nanoparticles show a magnetic behavior characteristic of soft ferromagnetism.
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