Blue Light Emission From Titania Quantum Dots Supported On Carboxylated Single Walled Carbon Nanotubes

A novel titania quantum dots supported on Carboxylated Single-walled carbon nanotubes (SWCNTs) is prepared by a simple wet chemical route and characterized by TEM (transmission electron microscope), EDS (energy dispersive spectroscopy), Raman Spectroscopy and thermal analysis(TG-DTA). Finally their luminescent properties are investigated. A strong photoluminescence emission with a maximum at 450 nm was observed. The titania nanoparticles supported on SWCNTs possess interesting luminescence characteristics and may have potential applications as a fluorescence probe. The titania quantum dots are considered as important sources of the observed luminescence.