Synthesis of titanate, TiO2 (B), and anatase TiO2 nanofibers from natural rutile sand

Titanate nanofibers were synthesized by hydrothermal method (150 °C for 72 h) using natural rutile sand as the starting materials. TiO2 (B) and anatase TiO2 (high crystallinity) nanofibers with the diameters of 20–100 nm and the lengths of 10–100 μm were obtained by calcined titanate nanofibers for 4 h at 400 and 700 °C (in air), respectively. The samples characterized by XRD, SEM, TEM, SAED, HRTEM, and BET surface area. This synthesis method provides a simple route to fabricate one-dimensional nanostructured TiO2 from low cost material.

Graphical abstractTitanate nanofibers (b) were synthesized by hydrothermal method (150 °C for 72 h) using natural rutile sand (a) as the starting materials. TiO2 (B) (c) and anatase TiO2 (d) nanofibers with the diameters of 20–50 nm and the lengths of 10–100 μm were obtained by calcined titanate nanofibers for 4 h at 400 °C and 700 °C (in air), respectively.Figure optionsDownload full-size imageDownload as PowerPoint slide