| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 26122 | Journal of Photochemistry and Photobiology A: Chemistry | 2015 | 6 Pages |
•The adsorption capability of Ti-HAp against IPA was greater than that of anatase.•Photocatalytic activity of Ti-HAp was inferior to that of anatase.•The surface friction force variation of anatase was similar to rutile ceramics.•The surface friction force variation of Ti-HAp was an almost opposite trend against anatase.
Photocatalytic activity and surface friction variation were evaluated on Ti-doped hydroxyapatite (Ti-HAp) and anatase-type TiO2 powders under UV illumination. Although the adsorption capability of Ti-HAp against gaseous 2-propanol (IPA) in the dark was greater than that of anatase, photocatalytic decomposition activity and water adsorption capability of Ti-HAp under UV illumination were inferior to those of anatase. Experiments using powder/epoxy composites revealed that Ti-HAp does not exhibit photocatalytic wettability conversion to a hydrophilic state, which was confirmed on anatase. The surface friction force variation of anatase under UV illumination was similar to previously reported trend for rutile ceramics. That of Ti-HAp exhibited a different trend against anatase, suggesting that its surface was originally more hydrophobic than anatase or cantilever.
