Synthesis and Characterization of Nanocrystalline LiTiO2 Using a One-Step Hydrothermal Method

Nanocrystalline LiTiO2 was synthesized using a one-step hydrothermal method. XRD and SAED patterns of the samples both confirmed the formation of rock salt-type LiTiO2 with a lattice constant of a = 4.14 Å. A TEM image of the sample shows very clear nanocrystalline LiTiO2 with an average particle size of 36.5 nm and a standard deviation of 8.0 nm. An FT-IR spectrum of the LiTiO2 confirms the absorption of CO2 mol- ecules on the surface of the samples. A UV-vis diffuse reflectance spectrum of the sample shows a blue shift of 28 nm compared with P25 (TiO2) and a Raman spectrum of the LiTiO2 displays the seven characteristic al- lowed bands at 158, 193, 245, 430, 688, 865, and 1090 cm -1 . The nanocrystalline LiTiO2 can be used as an