Granulation and Photocatalytic Performance of Anodized TiO₂ Nanotubes with Microwave-Assisted Annealing

Abstract:

The present work investigates the effects of microwave-assisted annealing on the granulation and photocatalytic performance of anodic TiO₂ nanotubes. The results indicate that although microwave-assisted heating can transform the amorphous TiO₂ nanotubes into completely anatase one within 5min, it brings the collapse and granulation of TiO₂ nanotubes, which weaken their photocatalytic activity. Meanwhile, the detachment and evolution of F^- rich layer to a layer of TiO₂ membrane with rounding-off surface, and the stripping of TiO₂ nanotube bottom from its body are also observed.

• Periodical: Key Engineering Materials (Volume 803)
• Pages: 377-381
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.803.377
• Online since: May 2019
• Authors: Gang Liu, Dao Lun Feng*, Qiang Ma, Ming Yu Wang, Hai Dong Xu
• Keywords: Anodization, Granulation, Microwave-Assisted Annealing, Photocatalytic Activity, TiO₂ Nanotube Structure

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