Chemical and Biomolecular Engineering Faculty Research

Title

Mechanical Properties of Titania Nanofiber Mats Fabricated by Electrospinning of Sol--gel Precursor

Document Type

Article

Publication Date

Spring 2-12-2010

Abstract

Flexible mats of titania fibers are prepared by calcination of electrospun polyvinylpyrrolidone fibers containing titanium isopropoxide precursor. Structural investigation of the calcinated nanofibers by X-ray diffraction (XRD) and electron diffraction (ED) combined with the morphologies by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) show the titania fibers, with an average diameter of 180 nm, were comprised of anatase and rutile crystals. The mechanical, chemical and thermal properties of the titania fiber mats are further investigated by the techniques of Instron mechanical tester, thermogravimetric analyzer (TGA), and Fourier transform infrared spectroscopy (FT-IR). The titania fiber mat prepared in this method exhibited a significant flexibility with 461 MPa Young’s modulus.

Publication Title

Journal of Sol-Gel Science and Technology

Volume

54

Issue

2

First Page

188

Last Page

194