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首页> 外文期刊>Colloids and Surfaces, A. Physicochemical and Engineering Aspects >Salt effects on the physical properties of magnetite nanoparticles synthesized at different NaCl concentrations
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Salt effects on the physical properties of magnetite nanoparticles synthesized at different NaCl concentrations

机译：盐对不同浓度NaCl合成的磁铁矿纳米粒子物理性能的影响

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摘要

Magnetite nanoparticles were synthesized at a wide range of NaCl solutions (c=0.01-3.0M). The particle diameter (d) was reduced from 7.7 to 6.8nm and the colloidal stability dropped with increasing c. The salt effect on the d was successfully elucidated with an aid of a homogeneous nucleation model. The saturation magnetization (M_s) reduction and the lattice contraction (Δa) from -0.015 to -0.038? with increasing c were observed due to the decrease of the d. From the Δa, the surface tension (γ) enhancement from 0.192 to 0.614N/m with increasing c was estimated.
机译：在宽范围的NaCl溶液中合成了磁铁矿纳米颗粒（c = 0.01-3.0M）。粒径（d）从7.7nm减小到6.8nm，并且随着c的增加，胶体稳定性下降。借助均相成核模型成功阐明了盐对d的影响。饱和磁化强度（M_s）减小和晶格收缩（Δa）从-0.015到-0.038？随着d的减小，观察到c增大。根据Δa，随着c的增加，表面张力（γ）从0.192增加到0.614N / m。

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