Phase stability and photoactivity of CuO modified titania nanotube prepared by hydrothermal method

Baiju K. Vijayan*, Kevin C. Schwartzenberg, Jinsong Wu, Kimberly A. Gray

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Titania nanotubes prepared through a modified hydrothermal method were functionalized with CuO in order to create a composite photocatalyst with enhanced reactivity. Their structural and morphological stability was monitored using X-ray diffraction and scanning and transmission electron microscopy. The X-ray photoelectron spectroscopy analysis indicated the presence of CuO in the titania matrix, which enhanced the anatase to rutile phase transformation. The morphological stability and photoactivity of titania nanotubes depend on the amount of CuO incorporated into the material matrix. The photocatalytic activity of the materials displays two maxima and a minimum and is the result of complex structural and electronic interactions and competing mechanisms.

Original languageEnglish (US)
Pages (from-to)23-28
Number of pages6
JournalJournal of Molecular Catalysis A: Chemical
Volume402
DOIs
StatePublished - Jan 1 2015

Keywords

  • Anatase
  • CuO
  • Rutile and photoactivity
  • Titania nanotube

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology
  • Physical and Theoretical Chemistry

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