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Investigation on degradation of methyl parathion using visible light in the presence of Cr+3 and N-doped TiO2
Jaganathan Senthilnathan,
Published in
2010
Volume: 93-94
   
Pages: 280 - 283
Abstract
Nitrogen (N) and Chromium (Cr) doped TiO2 was prepared by sol-gel process. A clear shift in the onset light absorption from UV region (<380) to visible region (>500 nm) was observed for the N-doped samples. The XRD results revealed the decrease in particle size with increasing N content in the lattice of anatase TiO2. Nitrogen doping does not alter the phase of anatase TiO2. The SEM and TEM images of N-TiO2 showed that the particle size is in the range of 20-25nm. The chemical nature of N in the N-TiO2 was evolved through X-ray photoelectron spectroscopy. The presence of different types of N species have been observed corresponding to different oxidation states and the presence of Ti-N and O-Ti-N have been confirmed from the observed binding energy values. Photocatalytic decomposition of methyl parathion was carried out in the visible region and found that N-doped TiO2 showed better catalytic activity than Cr and Cr/N doped TiO2. © (2010) Trans Tech Publications.
About the journal
JournalAdvanced Materials Research
ISSN10226680
Open AccessNo
Concepts (27)
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    ANATASE TIO
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    Catalytic activity
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    Chemical nature
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    Doped-tio
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    METHYL PARATHION
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    N CONTENT
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    N SPECIES
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    N-doped
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    N-DOPED TIO
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    NITROGEN-DOPING
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    Oxidation state
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    Photocatalytic decomposition
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    Sem and tem
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    Tio
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    Triethylamines
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    Uv region
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    Visible light
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    Visible region
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    XRD
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    Binding energy
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    Chromium
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    Organic compounds
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    Photodegradation
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    Sol-gel process
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    Titanium dioxide
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    X ray photoelectron spectroscopy
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    Doping (additives)