Wet Corrosion Process for: A simple and versatile method to fabricate nanostructured K-doped titanium oxide films for photocatlysis

摘要

Potassium (K) incorporated Ti-based nanostructured oxides (KTiO_x) have received particular attention due to their wide range of applications such as photocatalysis, phtovoltaics, electrochromic devices, electrochemistry, biointerfaces and corrosion because of their remarkable structure. KTiO_x materials are versatile, and through control of the K content, the electrical and optical properties can be fine-tuned. One of the main bottlenecks in using KTiO_x for diverse applications is the nanostructures fabrication, which generally involves a complicated process with low reproducibility and high cost of chemical modifications. The physical properties of KTiO_x which are made by chemical modification greatly affected by the incorporated K in the obtained KTiO_x, thereby inducing various of the size and morphology of the nanostructures. On the basis of this result, the precious amount of the incorporated K is a key issue to control the desirable properties. Herein, the development of a process that allows simple synthesis and tuning of the desired morphology and properties is currently an important roadblock in this research field.