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Nanometric core-shell-shell γ-Fe2O3/SiO2/TiO2 particles

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Abstract

The preparation of core-shell-shell γ-Fe2O3/SiO2/TiO2 nanoparticles of few tens nanometers is performed by successively coating onto magnetic nanoparticles a SiO2 layer and a TiO2 layer, using sol–gel methods. The thickness of the two layers and the aggregation state of the particles can be controlled by the experimental conditions used for the two coatings. These composite nanoparticles may find application as magnetic photocatalysts, since they are characterized by their small diameters which allow a good accessibility to the TiO2 shell.

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Acknowledgment

The authors acknowledge Olivier Sandre for fruitful discussions, and Delphine Talbot and Aude Michel for technical support.

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Authors and Affiliations

  1. LI2C-UMR 7612 (UPMC-CNRS-ESPCI), Université Pierre et Marie Curie (UPMC), 4, place Jussieu, Paris, 75252, France

    Sébastien Abramson, Liliane Srithammavanh, Jean-Michel Siaugue, Olivier Horner & Valérie Cabuil

  2. LPEM-UPR A0005, Ecole Supérieure de Physique et Chimie Industrielle (ESPCI), 10, rue Vauquelin, Paris, 75231, France

    Xiangzhen Xu

Authors
  1. Sébastien Abramson
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  2. Liliane Srithammavanh
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  3. Jean-Michel Siaugue
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  4. Olivier Horner
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  5. Xiangzhen Xu
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  6. Valérie Cabuil
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Correspondence to Sébastien Abramson.

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Abramson, S., Srithammavanh, L., Siaugue, JM. et al. Nanometric core-shell-shell γ-Fe2O3/SiO2/TiO2 particles. J Nanopart Res 11, 459–465 (2009). https://doi.org/10.1007/s11051-008-9484-y

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  • DOI: https://doi.org/10.1007/s11051-008-9484-y

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