The Effect of Water Content on the Formation of TiO2 Nanotubes in Ethylene Glycol

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In this paper, anodization of Ti foil was carried out in ethylene glycol (EG) containing 5 wt% NH4F solution and 0 to 1.5 wt% of water at 50 V for 60 min. The pH of the bath was kept constant at ~pH7. The crystal structure was studied by X-Ray Diffraction (XRD) analysis, and the morphology was observed via field emission scanning electron microscopy (FESEM). TiO2 nanotube with aspect ratio of 100 was obtained in EG containing less than 1wt % water. The nanotubes wall was very smooth. Increasing the water content > 1wt % results in short nanotubes of approximately 6.2μm with aspect ratio of 62. As anodized, nanotubes were amorphous and annealed at 400 °C promote 100 % anatase phase. Photocatalytic activity of the nanotubes produced at different water content was also evaluated by the degradation of methyl orange and the detail of the observation was discussed thoroughly in this paper.

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Periodical:

Edited by:

Zainal Arifin Ahmad, Muhd Ambar Yarmo, Fauziah Haji Abdul Aziz, Dr. Meor Yusoff Meor Sulaiman, Badrol Ahmad, Khairul Nizar Ismail, Nik Akmar Rejab

Pages:

102-105

DOI:

10.4028/www.scientific.net/AMR.173.102

Citation:

K. A. Saharudin and S. Sreekantan, "The Effect of Water Content on the Formation of TiO2 Nanotubes in Ethylene Glycol", Advanced Materials Research, Vol. 173, pp. 102-105, 2011

Online since:

December 2010

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$35.00

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