Abstract
We have developed a process for the preparation of magnetically controlled Fe3O4/TiO2 nanocomposites with increased specific surface areas and investigated the structural, magnetic, and adsorption properties of the nanocomposites. The use of block-poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (Pluronic-123) as a template in the synthesis process was shown to lead to a considerable increase in specific surface area (to 320 m2/g). After heat treatment, the materials containing 0.3–0.5 g of TiO2 and 0.0007–0.7 g of Pluronic-123 per gram of magnetite had a specific saturation magnetization in the range 3.75 to 3.96 μT m3/kg and coercive field from 1.47 to 1.61 kA/m.
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Original Russian Text © L.S. Semko, L.P. Storozhuk, S.V. Khutornoi, N.V. Abramov, P.P. Gorbik, 2015, published in Neorganicheskie Materialy, 2015, Vol. 51, No. 5, pp. 484–489.
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Semko, L.S., Storozhuk, L.P., Khutornoi, S.V. et al. Template synthesis, structure, and properties of magnetically controlled, large surface area Fe3O4/TiO2 adsorbents. Inorg Mater 51, 430–435 (2015). https://doi.org/10.1134/S0020168515040135
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DOI: https://doi.org/10.1134/S0020168515040135