Journal of Xi'an Jiaotong University

Synthesis of TiO₂ Nanofiber and Microsphere by Electrospinning and Their Performance of Photocatalytic Production Hydrogen
Xu Yunbo,Yan Wei,Liu Xiang'e,Zhang Yaojun,Guo Liejin
(State Key Laboratory of Multiphase Flow in Power Engineering,Xi'an Jiaotong University,Xi'an 710049, China)

Abstract:TiO₂ nanofiber and microsphere were synthesized by the electrospinning method and characterized by X-ray powder diffraction, scan electronic microscope, ultraviolet visible diffuse reflectance spectrum and nitrogen sorption analysis.The effects of different reaction conditions on the formation of TiO₂ nanofiber and microsphere were studied.The results show that the viscosity of polymer solution was the key factor that determined the morpha of TiO₂ nanofiber and microsphere.Compared with the TiO₂ nanoparticle,the photocatalytic activity of TiO₂ nanofiber and microsphere increased by a factor of 80% and 60%, respectively.
Keywords:TiO₂ª«nanofiber; TiO₂ microsphere;electrospinning;photocatalytic