The Influence of Fe₂O₃ Addition on the Tio₂ Structure and Photoactivity Properties

The influence of Fe₂O₃ addition on the TiO₂ structure and photoactivity properties have been studied. The addition of Fe₂O₃ on the TiO₂ done by TiO₂-Fe₂O₃ synthesized with variation of annealing temperature. The result showed that peak of anatase TiO₂ at 2θ = 25.35° and Fe₂O₃ at 2θ = 54.20°. The XRD of TiO₂ show annealing temperature at 400°C is anatase phase and the composite with annealing at temperature 150°C, 300°C, 400°C and 500°C is crystalline anatase phase, due to the addition of Fe₂O₃. Photodegradation of Rhodamin B with TiO₂ at 400°C annealing temperature showed optimum degradation 36.2 %, and the composite with annealing at 400°C showed optimum degradation 44.3% for 300 minutes irradiation. (paper)