Photo-induced properties of anodic oxide films on Ti6Al4V

Naoya Masahashi; Yoshiteru Mizukoshi; Satoshi Semboshi; Kazuyo Ohmura; Shuji Hanada

doi:10.1016/j.tsf.2012.03.026

Photo-induced properties of anodic oxide films on Ti6Al4V

Naoya Masahashi, Yoshiteru Mizukoshi, Satoshi Semboshi, Kazuyo Ohmura, Shuji Hanada

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

Photocatalytic activity and wettability of the anodic oxide layer on Ti6Al4V prepared by anodization in a sulfuric acid electrolyte are explored. The oxide is composed mainly of TiO ₂ with V ₂O ₅, VO ₂ and Al ₂O ₃. The crystal structure of the TiO ₂ varies from anatase to rutile with the sulfuric acid concentration in the electrolyte. Anatase exhibits better photocatalytic activity compared with rutile, which is different from those on Ti and Ti-Nb-Sn alloy. Contact angles of the oxides decrease with ultraviolet light illumination, and hydrophilicity is observed in the rutile oxide. Both photocatalytic activity and hydrophilicity are inferior to the corresponding Ti and Ti-Nb-Sn alloy, which is explained by the presence of Al ₂O ₃ in the anodic oxide.

Original language	English
Pages (from-to)	4956-4964
Number of pages	9
Journal	Thin Solid Films
Volume	520
Issue number	15
DOIs	https://doi.org/10.1016/j.tsf.2012.03.026
Publication status	Published - 2012 May 31

Keywords

Anodic oxidation
Crystal structure
Photocatalysis
Ti6Al4V
Titanium oxide

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/j.tsf.2012.03.026

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title = "Photo-induced properties of anodic oxide films on Ti6Al4V",

abstract = "Photocatalytic activity and wettability of the anodic oxide layer on Ti6Al4V prepared by anodization in a sulfuric acid electrolyte are explored. The oxide is composed mainly of TiO 2 with V 2O 5, VO 2 and Al 2O 3. The crystal structure of the TiO 2 varies from anatase to rutile with the sulfuric acid concentration in the electrolyte. Anatase exhibits better photocatalytic activity compared with rutile, which is different from those on Ti and Ti-Nb-Sn alloy. Contact angles of the oxides decrease with ultraviolet light illumination, and hydrophilicity is observed in the rutile oxide. Both photocatalytic activity and hydrophilicity are inferior to the corresponding Ti and Ti-Nb-Sn alloy, which is explained by the presence of Al 2O 3 in the anodic oxide.",

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author = "Naoya Masahashi and Yoshiteru Mizukoshi and Satoshi Semboshi and Kazuyo Ohmura and Shuji Hanada",

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T1 - Photo-induced properties of anodic oxide films on Ti6Al4V

AU - Masahashi, Naoya

AU - Mizukoshi, Yoshiteru

AU - Semboshi, Satoshi

AU - Ohmura, Kazuyo

AU - Hanada, Shuji

PY - 2012/5/31

Y1 - 2012/5/31

N2 - Photocatalytic activity and wettability of the anodic oxide layer on Ti6Al4V prepared by anodization in a sulfuric acid electrolyte are explored. The oxide is composed mainly of TiO 2 with V 2O 5, VO 2 and Al 2O 3. The crystal structure of the TiO 2 varies from anatase to rutile with the sulfuric acid concentration in the electrolyte. Anatase exhibits better photocatalytic activity compared with rutile, which is different from those on Ti and Ti-Nb-Sn alloy. Contact angles of the oxides decrease with ultraviolet light illumination, and hydrophilicity is observed in the rutile oxide. Both photocatalytic activity and hydrophilicity are inferior to the corresponding Ti and Ti-Nb-Sn alloy, which is explained by the presence of Al 2O 3 in the anodic oxide.

AB - Photocatalytic activity and wettability of the anodic oxide layer on Ti6Al4V prepared by anodization in a sulfuric acid electrolyte are explored. The oxide is composed mainly of TiO 2 with V 2O 5, VO 2 and Al 2O 3. The crystal structure of the TiO 2 varies from anatase to rutile with the sulfuric acid concentration in the electrolyte. Anatase exhibits better photocatalytic activity compared with rutile, which is different from those on Ti and Ti-Nb-Sn alloy. Contact angles of the oxides decrease with ultraviolet light illumination, and hydrophilicity is observed in the rutile oxide. Both photocatalytic activity and hydrophilicity are inferior to the corresponding Ti and Ti-Nb-Sn alloy, which is explained by the presence of Al 2O 3 in the anodic oxide.

KW - Anodic oxidation

KW - Crystal structure

KW - Photocatalysis

KW - Ti6Al4V

KW - Titanium oxide

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Photo-induced properties of anodic oxide films on Ti6Al4V

Abstract

Keywords

ASJC Scopus subject areas

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