CeO&lt;sub&gt;2&lt;/sub&gt;/TiO&lt;sub&gt;2&lt;/sub&gt; Nanotubes Composites: Synthesis, Characterization, and Photocatalytic Properties

Hai Bin Li; Xinyong Li; Yan De Song; Shu Guang Chen; Wang Ying; Chao Sui; Chao Jiang

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

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CeO<sub>2</sub>/TiO<sub>2</sub> Nanotubes Composites: Synthesis, Characterization, and Photocatalytic Properties

Hai Bin Li Xinyong Li Yan De Song Shu Guang Chen Wang Ying Chao Sui Chao Jiang

Year: 2012 Journal: Advanced materials research Vol: 583 Pages: 86-90 Publisher: Trans Tech Publications

DOI: 10.4028/www.scientific.net/amr.583.86

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Abstract

TiO 2 nanotubes were prepared via a hydrothermal route. CeO 2 nanoparticles with diameters around 5nm were loaded onto the surface of TiO 2 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 CeO 2 /TiO 2 nanotubes composites. The results show that CeO 2 particles are highly dispersed on the surface of TiO 2 nanotubes. The TiO2 nanotubes are modified to response to the visible light due to the combination with CeO 2 . The CeO 2 /TiO 2 nanotubes composites with a CeO 2 /TiO 2 atomic ratio of 2.5% show a further improvement on the photocatalytic activity for degradation of Rhodamine B in water. The presence of CeO 2 improves the light absorption of TiO 2 nanotubes and inhibits the electron-hole recombination.

Keywords:

Materials science Photocatalysis Calcination Rhodamine B Chemical engineering Transmission electron microscopy Nanotube Scanning electron microscope Hydrothermal circulation Nanoparticle Hydrothermal synthesis Nanotechnology Visible spectrum Composite number Diffuse reflectance infrared fourier transform Composite material Carbon nanotube Catalysis Chemistry Organic chemistry Optoelectronics

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TiO2 Photocatalysis and Solar Cells

Physical Sciences → Energy → Renewable Energy, Sustainability and the Environment

Advanced Nanomaterials in Catalysis

Physical Sciences → Materials Science → Materials Chemistry

Catalytic Processes in Materials Science

Physical Sciences → Materials Science → Materials Chemistry

CeO<sub>2</sub>/TiO<sub>2</sub> Nanotubes Composites: Synthesis, Characterization, and Photocatalytic Properties

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