We successfully synthesized Fe 3O 4/SiO 2 nanoparticles with ultrathin silica layer of 1.0±0.5 nm that was fine controlled by changing concentration of Fe 3O 4. Among various reaction conditions for silica coating, increasing concentration of Fe 3O 4 was more effective approach to decrease silica thickness compared to water-to-surfactant ratio control. Moreover, we found that concentration of the 1-octanol is also important factor to produce the homogeneous Fe 3O 4/SiO 2 nanoparticles. The present approach could be available to apply on preparation of other core/shell nanoparticles with ultrathin silica layer.
CITATION STYLE
Jang, E. S. (2012). Preparation of Fe 3O 4/SiO 2 core/shell nanoparticles with ultrathin silica layer. Journal of the Korean Chemical Society, 56(4), 478–483. https://doi.org/10.5012/jkcs.2012.56.4.478
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