The Preparation of the Magnetically Separated Cu Doped TiO2 by Coating-Calcining Method

Han Yu Chen; Bao Shan Zhao; Zhao Hui Li

doi:10.4028/www.scientific.net/AMR.197-198.857

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 197-198The Preparation of the Magnetically Separated Cu...

The Preparation of the Magnetically Separated Cu Doped TiO₂ by Coating-Calcining Method

Abstract:

In this paper, a magnetic hollow fly ash microsphere(MHFM) was prepared by citrate sol-gel method and the Cu doped TiO₂ nanopowder were prepared by sol-gel process at which the novel magnetic Cu-doped TiO₂ photocatalyst (M-Cu/TiO₂) was prepared by coating-calcining process. The crystal phase and morphology of M-Cu/TiO₂ were investigated by Scanning electron microscopy(SEM), X-ray diffraction(XRD), The photocatalytic activities of the prepared photocatalyst under different preparation conditions were evaluated by the degradation of methyl orange (MO). Results showed that these TiO₂ photocatalysts were highly efficient for the destruction of methylene orange in water. In addition, the multi-coating procedure made it possible to effectively control the physical properties of TiO₂ layer such as the coating thickness, amount of TiO₂ and photocatalytic activity. The floating catalyst made by this method could also be separated easily from the reaction system. And the multilayer film has higher photocatalytic activity than TiO₂ film under visible light irradiation.

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Advanced Materials Research (Volumes 197-198)

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857-860

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https://doi.org/10.4028/www.scientific.net/AMR.197-198.857

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Online since:

February 2011

Authors:

Han Yu Chen, Bao Shan Zhao, Zhao Hui Li

Keywords:

Magnetic Cu-Doped TiO₂, Methyl Orange (MO), Photocatalytic, Visible Light

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