Heterogeneous lollipop-like V2O5/ZnO array: A promising composite nanostructure for visible light photocatalysis

  • C. W. Zou
  • , Y. F. Rao
  • , A. Alyamani
  • , W. Chu
  • , M. J. Chen
  • , D. A. Patterson
  • , E. A.C. Emanuelsson
  • , W. Gao

Research output: Contribution to journalArticlepeer-review

94 Scopus citations

Abstract

ZnO/V2O5 core-shell nanostructures have been prepared by a two-step synthesis route through combined hydrothermal growth and magnetron sputtering. After annealing under oxygen ambience, a ZnO/V 2O5 heterogeneous lollipop-like nanoarray formed. The microstructure and crystal orientation of those nanolollipops were investigated by scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM), which show single crystal structure. The optical properties were characterized by UV-vis spectroscopy and showed quite different absorption curves for the as-deposited and annealed samples. The ZnO/V2O 5 nanolollipops demonstrated excellent photocatalytic activity in terms of decomposing 2,6-dichlorophenol (2,6-DCP) under visible light, indicating their promising potential as catalysts for industrial wastewater and soil pollution treatments.

Original languageEnglish
Pages (from-to)11615-11620
Number of pages6
JournalLangmuir
Volume26
Issue number14
DOIs
StatePublished - 20 Jul 2010
Externally publishedYes

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