| 초록 |
Nickel titanate (NiTiO3) is well known as a potential material for photocatalysis under visible light irradiation. With regard to NiTiO3, key factors for the development of a highly efficient semiconductor photocatalyst include (i) a suitable band gap for electron transfer under illumination, (ii) strong absorption of photon energy, and (iii) long life times of excited electrons to avoid bulk/surface charge recombination. In this study, we prepared Co-doped NiTiO3 materials via a Pechini method followed by a solvothermal treatment to enhance their optical and structural properties. Based on diverse catalyst characterizations such as XRD, Raman, FT-IR, HR-TEM, UV-Visible absorption, PL and N2 adsorption/desorption technique, it was found that Co doping into the NiTiO3 framework induced the inhibition of PL emission and the increase in surface areas. |
