| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1665777 | Thin Solid Films | 2013 | 6 Pages |
•A dip/spin coating method to prepare titanium oxide films was proposed.•The films were prepared by the lower side of the support contacting the sol.•The crystal grains in the films were tiny and uniform with a unique structure.•The films demonstrated excellent photocatalytic activity.
A dip/spin coating method for the preparation of titanium oxide films was proposed. Instead of placing an oxide sol on top of a substrate surface, the dip/spin coating was accomplished on the lower surface of the substrate where gravitational force exerted on the colloidal particles during spreading under a centrifugal force. The resulting TiO2 films were compared to those prepared using the conventional spin-coating and dip-coating methods. All the films were found to be composed primarily of anatase with a small amount of brookite. Compared to the films prepared using the conventional spin-coating and dip-coating methods, the TiO2 films fabricated using the dip/spin method had small and uniform grains with a unique structure, resulting in an increased photocatalytic activity when tested for degradation of methyl orange under UV irradiation.
