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    Investigating the growth mechanism and optical properties of carbon-coated titanium dioxide nanoparticles

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    Type
    Article
    Authors
    Anjum, Dalaver H. cc
    Memon, Nasir
    Chung, Suk Ho cc
    KAUST Department
    Advanced Nanofabrication, Imaging and Characterization Core Lab
    Clean Combustion Research Center
    Combustion and Laser Diagnostics Laboratory
    Core Labs
    Imaging and Characterization Core Lab
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2013-10
    Permanent link to this record
    http://hdl.handle.net/10754/562994
    
    Metadata
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    Abstract
    TiO2 nanoparticles (NPs) were prepared using flame synthesis and then characterized using transmission electron microscopy. We found that the flame method yields both crystalline TiO2 and amorphous TiO 2 NPs. TEM analysis revealed that only the crystalline TiO 2 NPs were coated with carbon. Based on this observation, we proposed a growth model for the diffusion and precipitation of carbon atoms in TiO 2 NPs. The optical properties of TiO2 NPs were investigated by performing valence electron energy loss spectrometry analysis. We observed that carbon-coated TiO2 NPs have higher absorption in the visible range due to their lower band-gap energy. © 2013 Elsevier B.V.
    Citation
    Anjum, D. H., Memon, N. K., & Chung, S. H. (2013). Investigating the growth mechanism and optical properties of carbon-coated titanium dioxide nanoparticles. Materials Letters, 108, 134–138. doi:10.1016/j.matlet.2013.06.079
    Publisher
    Elsevier BV
    Journal
    Materials Letters
    DOI
    10.1016/j.matlet.2013.06.079
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.matlet.2013.06.079
    Scopus Count
    Collections
    Articles; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

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