Journal of Inorganic Materials >
Effects of Morphology of Anatase TiO2 Nanotube Films on Photocatalytic Activity
Received date: 2009-12-30
Revised date: 2010-03-19
Online published: 2010-08-25
Five groups of TiO2 nanotube array films with different inner diameters and five groups with different tube lengths were fabricated on titanium by anodization. Morphology was analyzed by scanning electron microscope. The photocatalytic activity of the TiO2 nanotube films crystallized into anatase, was evaluated by the decolorization of methyl orange in aqueous solution under UV light irradiation. The effects of the nanotube diameter and length on the photocatalytic activity were investigated. The reusability of photocatalyst was evaluated through repeated photocatalytic reaction experiment. Results suggest that the TiO2 nanotube films with the diameter of 100nm exhibit the best photocatalytic activity to the degradation of methyl orange, and the length of nanotube has little effect on the photocatalytic activity. Repeated photocatalytic reaction experiment shows that the TiO2 nanotube films have excellent resuability as photocatalyst.
CUI Qiang, FENG Bo, CHEN Wei, WANG Jian-Xin, LU Xiong, WENG Jie . Effects of Morphology of Anatase TiO2 Nanotube Films on Photocatalytic Activity[J]. Journal of Inorganic Materials, 2010 , 25(9) : 916 -920 . DOI: 10.3724/SP.J.1077.2010.00916
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