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Effects of nitrogen content in monocrystalline nano-CeO 2 on the degradation of dye in indoor lighting

Applied Surface Science, ISSN: 0169-4332, Vol: 280, Page: 693-697
2013
  • 37
    Citations
  • 0
    Usage
  • 25
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    37
    • Citation Indexes
      37
  • Captures
    25

Article Description

Azo dyes are an abundant class of synthetic dyes, however their complex structure makes them difficult to biologically degrade. We sought to degrade acid orange 7 (AO7) using nitrogen-doped nano-CeO 2, which is a promising alternative photocatalyst to nitrogen-doped TiO 2. Nitrogen-doped monocrystalline CeO 2 nanoparticles with various nitrogen contents were synthesized solvothermally at 120 ̊C from Ce(NO 3 ) 3 ·6H 2 O, triethanolamine, and ethanol. The CeO 2 monocrystals were between 7 and 8 nm in diameter. Nitrogen was shown to be incorporated into CeO 2 lattice from the results of the lattice parameter calculations, X-ray photoelectron spectroscopy analysis and elemental analysis. The degradation of AO7 in water was investigated using a domestic 10 W compact fluorescent lamp. The degradation efficiency of AO7 by monocrystalline CeO 2 increased with increasing nitrogen content, reaching 97.6% for the sample with a N:Ce molar ratio of 0.3.

Bibliographic Details

Dongfeng Sun; Mingjie Gu; Ruixing Li; Shu Yin; Xiaozhen Song; Bin Zhao; Chengqiang Li; Junping Li; Zhihai Feng; Tsugio Sato

Elsevier BV

Chemistry; Physics and Astronomy; Materials Science

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