| Authors | سحر اروجی زاد,محمد الماسی کاشی,امیرحسن منتظر |
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| Journal | Nanotechnology |
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| Page number | 1 |
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| Volume number | 36 |
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| IF | ثبت نشده |
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| Paper Type | Full Paper |
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| Published At | 2024-12-30 |
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| Journal Grade | Scientific - research |
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| Journal Type | Electronic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | JCR ,SCOPUS |
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Abstract
A thermal decomposition method is used to synthesize monodisperse Mn ferrite nanoparticles
(NPs) by changing Mn concentration from 0.1 to 0.8 mmol. The effects of Mn concentration on
structural, compositional, morphological, magnetic, and hyperthermia properties are
investigated. Transmission electron microscopic images show that the morphology of the NPs
changes from flower-like to polygonal with increasing the Mn concentration. The saturation
magnetization reaches a maximum value of 48.32 emu g−1 and a minimum value of
11.09 emu g−1 with changing the Mn concentration, whereas the coercivity value decreases
from 12.6 to 5.3 Oe. The first-order reversal curve analysis enables the estimation of
superparamagnetic contribution of the Mn ferrite NPs in the range of 21%–59.5%. The highest
specific absorption rate value is obtained to be 385.37 W g−1 for Mn0.1Fe2.9O4 NPs with the
maximum superparamagnetic contribution using a manganese concentration of 0.4 mmol.
