The effect of temperature on the formation of CdTiO3 structures for enhancing photocatalytic property

Abstract CdTiO3 nano-structures were synthesized by hydrothermal method for 24 h@180 °C. It then was annealed at 450–1050 °C for 3 h and its effect was evaluated using XRD, FT-IR, TG-DSC, BET, FE-SEM, DRS, Raman, and EDS. Ilmenite phase was formed for. 180–850 °C. Transition to Perovskite occurred at 1050 °C. Direct band-gaps were determined by Tauc-plot which shows decrease with increased temperature. Photocatalyst performance evaluation of samples was done for degradation of Crystal violet dye under LED and sunlight. Degradation efficiency of CdTiO3-1050 °C was the best at both of LED/sunlight. Photoluminescence study shows a 400 nm excitation causes intense emission peaks at 478 nm (blue) and 530 nm (green).