|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >
Photo-induced properties of non-annealed anatase TiO2 mesoporous film prepared by anodizing in the hot phosphate/glycerol electrolyte
| Title: | Photo-induced properties of non-annealed anatase TiO2 mesoporous film prepared by anodizing in the hot phosphate/glycerol electrolyte |
| Authors: | Taguchi, Yoshiaki Browse this author | | Tsuji, Etsushi Browse this author | | Aoki, Yoshitaka Browse this author →KAKEN DB | | Habazaki, Hiroki Browse this author →KAKEN DB |
| Keywords: | Anodic TiO2 mesoporous film | | Non-annealing procedures | | Phosphate/glycerol electrolyte | | Photo-induced properties |
| Issue Date: | 1-Oct-2012 |
| Publisher: | Elsevier B.V. |
| Journal Title: | Applied Surface Science |
| Volume: | 258 |
| Issue: | 24 |
| Start Page: | 9810 |
| End Page: | 9815 |
| Publisher DOI: | 10.1016/j.apsusc.2012.06.035 |
| Abstract: | In this study, anatase crystalline TiO2 mesoporous film were formed by anodizing of titanium specimens without annealing procedures. The specimens were anodized at 3 and 20 V in 0.6 mol dm^[-3] K2HPO4 and 0.2 mol dm^[-3] K3PO4/glycerol electrolyte at 433 K. The obtained films had mesoporous structures with pore diameters as small as ～10 nm. The mesoporous film formed at 20 V without annealing (MP-20V) was a mixture of amorphous phase and nanograined anatase, which clearly showed strong <001> preferred orientation, whereas that at 3 V was completely amorphous. Even without annealing, the MP-20V showed high photocatalytic activities for decomposition of water and methylene blue. In contrast, the anodic TiO2 nanotube film formed in NH4F/ethylene glycol electrolyte revealed photocatalytic activities only after annealing at 723 K, because of the amorphous nature of the as-anodized nanotube film. The MP-20V film also showed superhydrophilicity with UV light irradiation. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/50155 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 辻 悦司
|
