Electrospinning Preparation of LaFeO3 Nanofibers

Jinxian Wang, Xiangting Dong, Zhen Qu, Guixia Liu, Guixia Liu, Wensheng Yu

Abstract


Polyvinyl alcohol(PVA)/[La(NO3)3+Fe(NO3)3] composite nanofibers were fabricated by electrospinning, and polycrystalline LaFeO3 nanofibers were prepared by calcination of the PVA/[La(NO3)3+Fe(NO3)3] composite nanofibers at 600ºC for 10h. The samples were characterized by using X-ray diffraction spectrometry(XRD), scanning electron microscopy(SEM), thermogravimetric-differential thermal analysis(TG-DTA), and Fourier transform infrared spectrometry(FTIR). The results show that PVA/[La(NO3)3+Fe(NO3)3] composite nanofibers are amorphous in structure, and pure phase LaFeO3 nanofibers are orthorhombic with space group Pn*a. The surface of as-prepared composite nanofibers is smooth, and the diameter is ca. 180nm. The diameter of LaFeO3 nanofibers is smaller than that of the relevant composite fibers. The surface of the LaFeO3 nanofibers becomes coarse with the increase of calcination temperatures. The diameter of LaFeO3 nanofibers is about 80nm, and the length is greater than 100μm. The mass of the sample remains constant when the temperature is above 500ºC, and the total mass loss percentage is 90%. Possible formation mechanism of LaFeO3 nanofibers is preliminarily advanced.


Full Text: PDF DOI: 10.5539/mas.v3n9p65

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

Modern Applied Science   ISSN 1913-1844 (Print)   ISSN 1913-1852 (Online)

Copyright © Canadian Center of Science and Education

To make sure that you can receive messages from us, please add the 'ccsenet.org' domain to your e-mail 'safe list'. If you do not receive e-mail in your 'inbox', check your 'bulk mail' or 'junk mail' folders.