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Studies on the Preparation of Magnetic Photocatalysts

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Abstract

A crystalline titanium dioxide coating was deposited onto silica insulated magnetite particles to prepare a stable magnetic photocatalyst. The direct deposition of crystalline titanium dioxide was conducted by aging dispersions of insulated magnetite particles in a titanium sol–gel precursor mixture at 60–90°C. The coating process was found to be influenced by pH, alkoxide precursor concentration, aging time and reaction temperature. A mechanism for the formation of the titanium dioxide coating has been proposed. The photocatalytic performance of the prepared particles was found to be related to the preparation conditions.

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Watson, S., Scott, J., Beydoun, D. et al. Studies on the Preparation of Magnetic Photocatalysts. J Nanopart Res 7, 691–705 (2005). https://doi.org/10.1007/s11051-005-7520-8

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