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Photocatalytic Properties of Size-Controlled Titania Nanotube Arrays
Joint Authors
Misawa, Keisuke
Kojima, Kazuo
Yogi, Chihiro
Hashishin, Takeshi
Tamaki, Jun
Source
International Journal of Electrochemistry
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-08-10
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The titania nanotube arrays (TNAs) with smooth surface was synthesized by anodization of titanium foil with 3 cm2 in square area using the electrolyte composed of 0.2 wt% NH4F and 0.5 vol% H2SO4 in ethylene glycol in order to evaluate the methylene blue photodegradation under ultra-violet irradiation.
The tube length and inner diameter as a size parameter were controlled by the anodization time from 5 to 10 h and applied voltage from 10 to 50 V.
The titania nanotube arrays (TNAs) annealed at 300 to 500°C were assigned to anatase phase, and TNAs at 600°C had both phase of anatase and rutile.
The crystallite size and the apparent rate constant were increased with the increase in the annealing temperature of TNAs from 300 to 500°C.
The bigger crystallite size of TNAs is suggested to be related to the increase in the amount of hole at the valence band, leading to the decrease in the apparent rate constant of MB degradation.
Interestingly, the four kinds of linear relationship with the apparent rate constant were seen in both the inner diameter of TNAs and the length.
Consequently, the apparent rate constant strongly depended on inner diameter of TNAs.
American Psychological Association (APA)
Hashishin, Takeshi& Misawa, Keisuke& Kojima, Kazuo& Yogi, Chihiro& Tamaki, Jun. 2011. Photocatalytic Properties of Size-Controlled Titania Nanotube Arrays. International Journal of Electrochemistry،Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-488754
Modern Language Association (MLA)
Hashishin, Takeshi…[et al.]. Photocatalytic Properties of Size-Controlled Titania Nanotube Arrays. International Journal of Electrochemistry No. 2011 (2011), pp.1-7.
https://search.emarefa.net/detail/BIM-488754
American Medical Association (AMA)
Hashishin, Takeshi& Misawa, Keisuke& Kojima, Kazuo& Yogi, Chihiro& Tamaki, Jun. Photocatalytic Properties of Size-Controlled Titania Nanotube Arrays. International Journal of Electrochemistry. 2011. Vol. 2011, no. 2011, pp.1-7.
https://search.emarefa.net/detail/BIM-488754
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-488754