Composite photocatalyst of nitrogen and fluorine codoped titanium oxide nanotube arrays with dispersed palladium oxide nanoparticles for enhanced visible light photocatalytic performance

Qi Li, Jian Ku Shang

Research output: Contribution to journalArticlepeer-review

Abstract

A novel composite photocatalyst of nitrogen (N) and fluorine (F) codoped titanium oxide (TiO2) nanotube arrays with dispersed palladium oxide (PdO) nanoparticles was developed by dispersing PdO nanoparticles into N and F codoped TiO2 nanotube array template created by anodization of titanium foil. These N and F codoped TiO2/PdO nanotube arrays demonstrated increased visible light absorption, fast superhydrophilicity conversion, and enhanced photocatalytic degradation of organic pollutants. The enhancement on the photocatalytic performance was explained by the optoelectronic coupling between dispersed PdO nanoparticles and N and F codoped TiO2 nanotube arrays under visible light illumination, which involves trapping of electrons by PdO nanoparticles, and subsequently decreases the electron/hole pair recombination. Various transition metal/metal oxide nanoparticles could be introduced into nanotube arrays by this simple approach, which could create novel properties for nanotube arrays and promise a wide range of technical applications.

Original languageEnglish (US)
Pages (from-to)3493-3499
Number of pages7
JournalEnvironmental Science and Technology
Volume44
Issue number9
DOIs
StatePublished - May 1 2010
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • Environmental Chemistry

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