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Modified hierarchical TiO NTs for enhanced gas phase photocatalytic activity

RSC Advances, ISSN: 2046-2069, Vol: 5, Issue: 71, Page: 57937-57942
2015
  • 14
    Citations
  • 0
    Usage
  • 7
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    14
    • Citation Indexes
      14
  • Captures
    7

Article Description

In this paper, three kinds of noble metal nanoparticles (NMNs) were successfully loaded on hierarchical TiO nanotube arrays (TiO NTs) to improve photocatalytic (PC) activity of gas phase pollutants. The hierarchical TiO NTs, with unique top-nanoporous and bottom-nanotubular structure, were prepared through a facile two-step anodization method, and then the noble metal nanoparticles were loaded on the TiO NTs by means of a photo-reduction method. The gas phase photocatalytic activity of TiO NTs and NMNs/TiO NTs were estimated by decomposition of gaseous methanol. The formation of Schottky junctions between TiO NTs and NMNs significantly improved the PC due to they could significantly accelerate the electron transfer and thus reduction of the recombination of photogenerated electrons and holes.

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