Synthesis of TiO2 nanowires from fusion method

Abstract

Free standing nanowires were produced from synthetic rutiles which were treated with NaOH at 500°C for 4 hours, followed by repeated water washing [1–5]. The samples had been treated again with 40% and 50% of NaOH (leaching process). This is the critical part of forming the wire structure. Diameter of the wires from 20–30nm and length of more than 4µm had been produced from this process. Products were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). A possible formation mechanism of nanotuwires from synthetic rutiles precursor is proposed.