Abstract
Magnetic Fe 3O 4/SiO 2 particles with rod-like structure and hollow interior have been constructed by a template method. During this procedure, β-FeOOH was firstly synthesized as the rod-like template to fabricate β-FeOOH/SiO 2 core/shell-like particles. These β-FeOOH/SiO 2 nanorods could be further transformed to Fe 3O 4/SiO 2 via the decomposition-reducing method. These particles showed ferromagnetic behavior at room temperature with high coercivity and may provide potential applications in biological area.
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