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

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

77 Citations (Scopus)

Abstract

ZnO/V2O5core-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/V2O5heterogeneous 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/V2O5nanolollipops 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
Publication statusPublished - 20 Jul 2010

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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