Jump to main content
Jump to site search

Issue 44, 2014
Previous Article Next Article

Electrospun anatase TiO2 nanofibers with ordered mesoporosity

Author affiliations


Anatase TiO2 nanofibers (200–300 nm in diameter) with 3-dimensionally (3D) ordered pore structure and high surface area were synthesized by electrospinning technique. The unique combination of partially acetylacetone chelated Ti-alkoxide, viscosity-controlling cum high positive charge balancing agent PVP and structure director F127 yielded nanofibers with ordered mesoporosity similar to the Pm[3 with combining macron]m structure. Dynamic heating of the fibers in the temperature range 350–540 °C and simultaneous XRD studies revealed that the amorphous to anatase transformation initiated at about 400 °C with the retention of 3D mesoporosity up to the final heat-treatment stage. TEM studies also confirmed this. During amorphous to anatase conversion, the surface area decreased from 165 (350 °C) to 90 m2 g−1 (540 °C). The crystalline mesoporous nanofibers showed enhanced photocatalytic activity with reusability.

Graphical abstract: Electrospun anatase TiO2 nanofibers with ordered mesoporosity

Back to tab navigation

Publication details

The article was received on 29 Aug 2014, accepted on 23 Sep 2014 and first published on 23 Sep 2014

Article type: Paper
DOI: 10.1039/C4TA04481A
Citation: J. Mater. Chem. A, 2014,2, 19029-19035
  •   Request permissions

    Electrospun anatase TiO2 nanofibers with ordered mesoporosity

    S. Chattopadhyay, J. Saha and G. De, J. Mater. Chem. A, 2014, 2, 19029
    DOI: 10.1039/C4TA04481A

Search articles by author