Morphology and crystalline phase-controllable synthesis of TiO_2 and their morphology-dependent photocatalytic properties

摘要

In this paper, TiO_2 nanomaterials were prepared by using a simple procedure without any complex apparatus. The products were well-dispersed uniformly and their shape, size and crystalline phase could be controlled. With increasing pH, the morphology of TiO_2 transformed from particle to rod-like and then to bowknot-like and the crystalline phase of TiO_2 changed from anatase to brookite. Finally, phenol was used as degradation model for testing the photocatalytical activity of TiO_2 with different morphologies.