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
- 37Citations
- 25Captures
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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
http://www.sciencedirect.com/science/article/pii/S0169433213009719; http://dx.doi.org/10.1016/j.apsusc.2013.05.044; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84879689960&origin=inward; https://linkinghub.elsevier.com/retrieve/pii/S0169433213009719; https://dx.doi.org/10.1016/j.apsusc.2013.05.044
Elsevier BV
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