Fe3O4/SiO2/TiO2 core‐shell nanoparticles were synthesized via a sol‐gel method with the aid of sonication. Fe3O4 nanoparticles were being encapsulated within discrete silica nanospheres, and a layer of TiO2 shell was then coated directly onto each silica nanosphere. As‐synthesized Fe3O4/SiO2/TiO2 core‐shell nanoparticles showed enhanced photocatalytic properties as evidenced by the enhanced photodegradation of methylene blue under UV light irradiation.
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Pang et al. (2012) studied this question.
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