Preparation and Photocatalytic Properties of Magnetic TiO2 Compounds

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Abstract:

In this paper, magnetic composite photocatalysts were prepared through depositing TiO2 on the surface of NiFe2O4 by sol-gel method. The composition, structure and magnetism of the samples are tested by XRD, TEM and VSM, respectively. The photoactivity of the as-prepared photocatalysts was investigated by degrading methyl orange under UV light. The effect of NiFe2O4 and SiO2 intermediate layer on the activity of photocatalyst was also studied. It has been found that NiFe2O4 has a negative influence on the photocatalytic activity of magnetic TiO2 compounds. The middle layer of SiO2 can effectively improve the photocatalytic activity of magnetic TiO2 compounds.

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Advanced Materials Research (Volumes 396-398)

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306-310

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November 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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