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

Dalaver H. Anjum, Nasir K. Memon, Suk Ho Chung

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    9 Citations (Scopus)


    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.

    Original languageEnglish
    Pages (from-to)134-138
    Number of pages5
    JournalMaterials Letters
    Publication statusPublished - 24 Jul 2013



    • Carbon-coating
    • Electron microscopy
    • Flame synthesis
    • Nanoparticles
    • Optical materials and properties
    • TiO

    ASJC Scopus subject areas

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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