EFFECT OFN-DOPINGONSTRUCTURAL AND OPTICAL PROPERTIES OF TiO2 NANOCRYSTALS

Nanocrystallineanatase phase N-doped TiO2nanocrystalsare synthesized by Sol-Gel method.The TiO2 nanocrystals are prepared from the reaction of Titanium (IV) is opropoxide, ethyl alcohol, and H2O. The crystalline phase is observed form powder X-ray diffraction (PXRD) pattern. PXRD measurements prove the exclusive presence of the anatase phase. Fourier transform infrared spectroscopy (FTIR) is investigated in order to confirm the vibrations of N-H bond in the N-doped TiO2 crystal lattice, which is found at 3393 cm-1. The optical band gap value of N-doped TiO2 nanocrystals are estimated from Tauc’s plot