Photocatalytic Properties of F-TiO₂/Ti Photoelectrodes Prepared by Microarc Oxidation Method under Visible Light Illumination

Abstract:

Wormhole-shaped F-doped TiO₂/Ti photoelectrodes were prepared by microarc oxidation method in NaF solution. The morphology and structure of the photoelectrodes were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray fluorescence (XRF). It was found that F-doped TiO₂/Ti photoelectrodes were porous and composed of anatase TiO₂. The photocatalytic properties of F-doped TiO₂/Ti photoelectrodes were investigated by photodiscoloration rate of Rhodamine B(Rh.B) under different conditions. All results showed that the photoelectrodes prepared at voltage of 160V, NaF concentration of 0.01mol/L and oxidation time of 10min have optimal photocatalytic performance. Rh.B was almost completely removed by F-doped TiO₂/Ti photoelectrodes after 120min under the illumination of artificial visible light.

• Periodical: Advanced Materials Research (Volumes 306-307)
• Pages: 1459-1463
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.306-307.1459
• Online since: August 2011
• Authors: Yan Jun Xin, De Jie Cui
• Keywords: F-Doped, Micro-Arc Oxidation (MAO), Photocatalytic, TiO₂ Photoelectrode

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