Enhanced photocatalytic activity of electrospun TiO2/ZnO nanofibers with optimal anatase/rutile ratio

Carina Chun Pei, Woon Fong Leung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

52 Citations (Scopus)

Abstract

The photocatalytic characteristics of the TiO2/ZnO nanofibers synthesized by electrospinning followed by calcinating at different temperatures to alter the anatase-to-rutile ratio are investigated. The results demonstrate that the photocatalytic activity of TiO2/ZnO nanofibers is enhanced by optimizing the anatase/rutile ratio among the trade-off effects of the band-gap energy, the electron/hole recombination rate, and the surface area. When calcined at 650 C, the TiO2/ZnO nanofibers with optimal anatase/rutile ratio (48:52) balancing these trade-off effects have the highest photocatalytic efficiency both in the degradation of RhB in liquid and conversion of NO gas.
Original languageEnglish
Pages (from-to)100-104
Number of pages5
JournalCatalysis Communications
Volume37
DOIs
Publication statusPublished - 5 Jul 2013

Keywords

  • Nanofiber
  • Photocatalyst
  • Reduced electron-hole recombination
  • Rutile-anatase ratio
  • TiO /ZnO 2

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Process Chemistry and Technology

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