A Study on Structure/Phase Transformation of TiO2 nanorods at Various Annealing Temperatures

Synthesis of TiO2 nanorods was conducted through mechanochemical of ball milling at speed of 175 rpm for 5 hours and strong base 12 M NaOH reaction by hydrothermal at 150 degrees C overnight on variation annealing at 400, 500, and 600 degrees C. Material characterization were performed by X-Ray Diffraction (XRD), Transmission Electron Microscoe (SEM), and Surface Area Analyzer (SAA). Strong base reaction by hydrothermal showed the presence of anatase, brookite, and rutile phase for annealing up to 400 degrees C. The diffraction pattern of annealing at 500 and 600 degrees C contain peaks of both brookite and rutile phase. Morphology transformation of TiO2 to form nanorods TiO2 was showed by rod-shape from TEM micrographs and increase surface area into 111.9 m(2)/g.