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Influence of heteroatom doping of TiO2 nanoparticle on the red shift and the related catalytic activity
Balasubramanian Viswanathan, Ram Prasad Viswanath
Published in
2007
Volume: 6
   
Issue: 2
Pages: 137 - 141
Abstract
N-doped anatase TiO2 has been prepared by thermal decomposition of Ti containing metal complexes. The light absorption onset has been shifted to the visible region by ∼ 100 nm when compared to pure TiO2. The N environment of N-doped TiO2 has been studied by XPS and the results confirm the presence of N-Ti-O in the N-doped samples. Also, there is a shift in the binding energy values of Ti 2p3/2, and the additional peak for O Is in N-doped TiO2 confirms the increase in the covalent nature of TiO2 during the N-doping. The photocatalytic activity of N-doped TiO2 has been studied both in the UV and visible regions and N-doped TiO2 shows higher activity than the Degussa TiO2 in the visible region. © World Scientific Publishing Company.
About the journal
JournalInternational Journal of Nanoscience
ISSN0219581X
Open AccessNo
Concepts (12)
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    Binding energy
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    Doping (additives)
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    Light absorption
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    Nanoparticles
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    Photocatalysts
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    Pyrolysis
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    Titanium dioxide
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    X ray photoelectron spectroscopy
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    ANION N-DOPED TIO2
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    METHYLENE BLUE DECOMPOSITION
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    Photocatalyst
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    Catalyst activity