Journal of Nanomedicine & Nanotechnology

Effect of needle diameter and annealing temperature on TiO2 nanofibers synthesized by electrospinning

Nano World Summit: Current and Future Perspectives

June 06-07, 2018 | Philadelphia, USA

P Sreedhara Reddy, Charan Kuchi and Y Suneetha

Sri Venkateswara University, India

Posters & Accepted Abstracts: J Nanomed Nanotechnol

Abstract:

Titanium dioxide (TiO2) based nanomaterials are non-toxic, eco-friendly and easy to fabricate at low cost. In the present study, TiO2 nanofibers were synthesized by using cost-effective electrospinning technique. The effect of needle diameter on the TiO2 nanofibers average diameter has been evaluated with four different needle internal diameters. The as-spun TiO2 nanofibers were observed and analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-Ray diffraction (XRD), Raman spectroscopy and diffuse reflectance spectroscopy (DRS) techniques. SEM explains the relation between the different needle internal diameter and the resulting average diameter of the nanofibers. EDS spectrum shows the effective elemental composition of pure TiO2 nanofibers. The XRD peaks and Raman frequencies confirm the anatase, rutile and mixed phases of TiO2 nanofibers observed at 500oC, 700oC and 900oC. The annealing temperature effect on different crystal phases of TiO2 nanofibers has been clearly explained. Optical band gap calculated from DRS studies using Kubelka-Munk function. The resulting TiO2 nanofibers has more advantages in the field of tissue engineering, gas sensors and photocatalysis. psreddy4@gmail.com