Investigating the growth mechanism and optical properties of carbon-coated titanium dioxide nanoparticles
Type
ArticleKAUST Department
Advanced Nanofabrication, Imaging and Characterization Core LabClean 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
2013-10Permanent link to this record
http://hdl.handle.net/10754/562994
Metadata
Show full item recordAbstract
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.2013.06.079Publisher
Elsevier BVJournal
Materials Lettersae974a485f413a2113503eed53cd6c53
10.1016/j.matlet.2013.06.079