| 초록 |
In this study, N-dope titania was continuously synthesized under supercritical and subcritical water conditions using titanium(Ⅳ)tetraisopropoxide (TTIP) and nitric acid as a titania precursor and N source, respectively. The synthesized N-doped titania was characterized by XRD, SEM, N2-adsorption, XPS and UV-Visible spectroscopy. XPS results showed that N-doped titania was successfully synthesized. Accrording to the XRD patterns, the synthesized N-doped titania had pure anatase phase which is known to has higher photocatalytic activity than rutile phase. In the UV-Visible spectroscopy, the absorption edge of synthesized N-doped titania shifted into the visible light region compared with representative commercial titania P25. The photocatalytic activity of N-doped titania is discussed for the degradation of methyl orange. |
