CeO2/TiO2 Nanotubes Composites: Synthesis, Characterization, and Photocatalytic Properties

Hai Bin Li; Xin Yong Li; Yan De Song; Shu Guang Chen; Ying Wang; Chao Yue Sui; Chao Jiang

doi:10.4028/www.scientific.net/AMR.583.86

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 583CeO2/TiO2 Nanotubes Composites: Synthesis,...

CeO₂/TiO₂ Nanotubes Composites: Synthesis, Characterization, and Photocatalytic Properties

Abstract:

TiO₂ nanotubes were prepared via a hydrothermal route. CeO₂ nanoparticles with diameters around 5nm were loaded onto the surface of TiO₂ nanotubes via a deposition approach followed by a calcination process. Transmission electron microscopy (TEM), X-ray diffraction (XRD), and UV-vis diffuse reflectance spectroscopy (UV-vis) were applied for the characterization of the as-prepared CeO₂/TiO₂ nanotubes composites. The results show that CeO₂ particles are highly dispersed on the surface of TiO₂ nanotubes. The TiO2 nanotubes are modified to response to the visible light due to the combination with CeO₂. The CeO₂ /TiO₂ nanotubes composites with a CeO₂ /TiO₂ atomic ratio of 2.5% show a further improvement on the photocatalytic activity for degradation of Rhodamine B in water. The presence of CeO₂ improves the light absorption of TiO₂ nanotubes and inhibits the electron-hole recombination.

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Periodical:

Advanced Materials Research (Volume 583)

Pages:

86-90

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.583.86

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Online since:

October 2012

Authors:

Hai Bin Li, Xin Yong Li, Yan De Song, Shu Guang Chen, Ying Wang, Chao Yue Sui, Chao Jiang

Keywords:

Cerium Oxide, Composite, Hydrothermal, Photocatalysis, Titanium Dioxide (TiO₂)

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