Superior photocatalytic performance of graphene wrapped anatase/rutile mixed phase TiO2 nanofibers synthesized by a simple and facile route

Thirugnanam Lavanya, Mrinal Dutta, Sundara Ramaprabhu, Kaveri Satheesh

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Optimized combination of novel reduced graphene oxide (rGO) wrapped anatase/rutile mixed phase TiO2 nanofibers (MPTNFs) synthesized by an efficient route of electrospinning together with the help of easy chemical methods has reported to enhance the photocatalytic performance. The mesoporous MPTNFs/rGO composites were characterized by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy. The photocatalytic activity was evaluated by degradation of methyl orange. A significant increase in the reaction rate was observed with TiO2/rGO materials under UV light irradiation. The synergistic effect of anatase/rutile mixed phase in one dimensional nanostructure and the electronic interaction between TiO2 and rGO provided the subsequent improvement of electron transfer. These intriguing peculiarities also reduced the charge recombination for enhancement of catalytic efficiency.

Original languageEnglish
Pages (from-to)494-503
Number of pages10
JournalJournal of Environmental Chemical Engineering
Volume5
Issue number1
DOIs
StatePublished - 1 Feb 2017

Keywords

  • Composite
  • Mixed phase TiO
  • Nanofiber
  • Photocatalytic activity
  • rGO wrapping

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Waste Management and Disposal
  • Pollution
  • Process Chemistry and Technology

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