TY - JOUR
T1 - Structural and characteristic variation of anodic oxide on pure Ti with anodization duration
AU - Mizukoshi, Yoshiteru
AU - Ohtsu, Naofhumi
AU - Masahashi, Naoya
N1 - Funding Information:
The authors wish to thank Ms. Y. Matsuda and Mr. S. Sugiyama from IMR, Tohoku University, for their helpful assistance. This study was partially supported by Izumi Science and Technology Foundation .
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2013/10/15
Y1 - 2013/10/15
N2 - Change in the structural and characteristic of the anodic oxide on pure Ti with the duration of anodization time was investigated. With the progress of the anodization, the phase of the formed TiO 2 successively changed from anatase phase to rutile phase. In the transition process, peak intensities of rutile TiO 2 1 0 1, 1 1 1 and 2 1 1 planes of X-ray diffraction characteristically increased. The contact angles of water droplets on the anodize TiO 2 were monotonously decreased with the progress of the anodization except on the characteristically oriented rutile surface. In the evaluations of acetaldehyde photocatalysis under UV illumination, the anatase TiO 2 anodized for short period exhibited high activities. On the other hand, when illuminated with visible light (>422 nm), rutile-structured TiO 2 formed by anodization with a long duration exhibited superior photocatalytic activities probably due to high rutile fraction and sulfur incorporation from the electrolyte.
AB - Change in the structural and characteristic of the anodic oxide on pure Ti with the duration of anodization time was investigated. With the progress of the anodization, the phase of the formed TiO 2 successively changed from anatase phase to rutile phase. In the transition process, peak intensities of rutile TiO 2 1 0 1, 1 1 1 and 2 1 1 planes of X-ray diffraction characteristically increased. The contact angles of water droplets on the anodize TiO 2 were monotonously decreased with the progress of the anodization except on the characteristically oriented rutile surface. In the evaluations of acetaldehyde photocatalysis under UV illumination, the anatase TiO 2 anodized for short period exhibited high activities. On the other hand, when illuminated with visible light (>422 nm), rutile-structured TiO 2 formed by anodization with a long duration exhibited superior photocatalytic activities probably due to high rutile fraction and sulfur incorporation from the electrolyte.
KW - Anodization
KW - Photocatalyst
KW - Visible light response
KW - XPS
UR - http://www.scopus.com/inward/record.url?scp=84883138819&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84883138819&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2013.07.062
DO - 10.1016/j.apsusc.2013.07.062
M3 - Article
AN - SCOPUS:84883138819
VL - 283
SP - 1018
EP - 1023
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -