Paper Title:
Growth and Photodegradation Characteristics of Nano-Crystalline Titania Coating Prepared by MAO
  Abstract

Nano-crystalline titania coatings were prepared by microarc oxidation (MAO) on titanium alloy (TC4) substrates in Na2CO3-KF electrolytic solution. The coating thickness was measured by an optical microscopy with a CCD camera. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were employed to characterize the microstructure and phase composition of coatings. The results show that the coatings are porous nano-crystalline structures mainly composed of anatase and rutile (TiO2). With the increase of anode voltage, both the relative contents of rutile and the sizes of micropores increase gradually, whereas the sizes of the nano-crystalline decrease first and then increase. The prepared samples were employed to study the photo degradation characteristics of Rhodamine B. The results show that the photodegradation performance of the samples prepared under 220V is the best.

  Info
Periodical
Advanced Materials Research (Volumes 160-162)
Edited by
Guojun Zhang and Jessica Xu
Pages
968-973
DOI
10.4028/www.scientific.net/AMR.160-162.968
Citation
J. B. Wang, J. Lu, X. Y. Cheng, "Growth and Photodegradation Characteristics of Nano-Crystalline Titania Coating Prepared by MAO", Advanced Materials Research, Vols. 160-162, pp. 968-973, 2011
Online since
November 2010
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Price
$32.00
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