Journal
CATALYSIS COMMUNICATIONS
Volume 10, Issue 8, Pages 1188-1191Publisher
ELSEVIER
DOI: 10.1016/j.catcom.2009.01.016
Keywords
TiO2 nanotube array; Ultrasound; Photocatalytic; Synergy; Recyclability
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Funding
- Shanghai Science and Technology Committee [07XD14014, 06DZ05902]
- Shanghai Municipal Education Commission [J50102, 08YZ09]
- Shanghai-unilever Research and Development Fund [06SU07001]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- State Education Ministry
- Science Foundation for The Excellent Youth Scholars of University (Shanghai)
- Innovative Foundation of Shanghai University
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TiO2 nanotube array was prepared by the anodic oxidation method and was characterized by XRD and TEM. The inner pore diameter, wall thickness and length of TiO2 nanotube are about 60 nm, 19 nm and 1.93 mu m, respectively. The porosity and specific surface area calculated are 55% and 27.4 m(2) g(-1), respectively. The sonophotocatalytic activity of TiO2 nanotube array was evaluated by the degradation of methylene blue. The results show that the frequency has great effect on the synergy between sonolytic and photocatalytic degradation. At 27 kHz, the synergistic effect is as high as 22.1%. The catalyst also shows good recyclability. (C) 2009 Elsevier B.V. All rights reserved.
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