Electrospun TiO 2/SnO 2 nanofibers with innovative structure and chemical properties for highly efficient photocatalytic H 2 generation

Siew Siang Lee, Hongwei Bai, Zhaoyang Liu, Darren Delai Sun

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Innovative TiO 2/SnO 2 nanofibers were fabricated via electrospinning an innovated precursor solution and used for photocatalytic H 2 generation. The nanofibers exhibited greatly enhanced H 2 evolution rate compared to bare TiO 2 nanofiber and P25. The enhanced efficiency of the TiO 2/SnO 2 nanofibers was attributed to its excellent synergistic properties: (1) its good mesoporosity; (2) the red-shift of absorbance spectra to enhance light absorbance capability; (3) its long nanofibrous structure and (4) anatase TiO 2 - rutile TiO 2 - rutile SnO 2 ternary junctions favorable for the separation of electrons and holes. Based on our experimental results, the optimum ratio of TiO 2/SnO 2 nanofibers with 3% Sn demonstrated the highest efficiency in H 2 generation.

Original languageEnglish
Pages (from-to)10575-10584
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number14
DOIs
Publication statusPublished - Jul 2012
Externally publishedYes

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Keywords

  • Electrospinning
  • Hydrogen generation
  • Nanofibers
  • SnO
  • TiO

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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