Large-scale growth of single-crystalline TiO₂ nanowires and their visible-light photocatalytic activity
by Nguyen Thi Quynh Hoa; Eui-Tae Kim
International Journal of Nanotechnology (IJNT), Vol. 10, No. 3/4, 2013

Abstract: Single-crystalline TiO₂ nanowires were successfully grown by oxidation of as-sputtered Ti films with ethanol. X-ray diffractometer (XRD) and high resolution transmission electron microscopy (HRTEM) studies revealed that the nanowires had a single-crystalline structure and grew along the [110] axis. The formation of the TiO₂ thin film was found to play an important role in the nanowire growth due to the ability to reduce the diffusion rates of Ti atoms from Ti films for the limited nucleation by thermally activated. The growth of TiO₂ nanowires was determined by the reaction of ethanol with Ti diffusion which was supplied from the Ti films. The TiO₂ nanowires showed an efficient visible-light photocatalytic activity. Moreover, after thermal annealing, both UV and visible-light photocatalytic activities of TiO₂ nanowires were enhanced significantly due to the increase in the surface defects on the nanowires.

Online publication date: Fri, 05-Apr-2013

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Nanotechnology (IJNT):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com