| 초록 |
Alkali metal ion intercalation into TiO2 photocatalysts are a well-known as the method for obtaining enhanced photocatalytic properties. However, TiO2 photocatalyst only operates under the irradiation of ultra-violet light due to the wide bandgap. Li+ intercalation process exhibits not only, improved photocatalytic activities but, decreased recombination rate. Herein, an effective electrochemical intercalation method is proposed for the synthesis of lithium-intercalated TiO2 nanoparticles suitable for high performance photocatalytic production of hydrogen. XPS and XANES analysis was conducted and confirmed that Ti4+ was reduced to Ti3+ as a result of lithium intercalation. Consequently, intercalated TiO2 is enhanced not only optical property but photocatalytic performance for H2 genaration. |
