Synthesis of Titanium Dioxide Nanomaterial by Pulsed Laser Ablation in Water
Synthesis of colloidal solution of TiO2 Nanoparticles by pulsed laser ablation in water, without any surfactant is studied. Fundamental wavelength of Nd:YAG laser operating at 35 mJ/pulse energy, 10 ns pulse width and 10 Hz repetition rate is used for the ablation of titanium target placed in water. Laser ablation of Titanium target in the water produces violet colored, highly stable colloidal solution for months even in the absence of any capping agents. UV-Visible absorption, Photoluminescence, X-ray diffraction, SEM and FTIR spectroscopic technique are used for the characterization of produced Nanomaterials. Six emission bands are observed in the photoluminescence spectrum of the produced sample. Origin of all the lines in the PL spectrum has been discussed. Possible reaction mechanism for the laser matter interaction and synthesis of nanomaterial are discussed.
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Document Type: Research Article
Publication date: 2009-09-01
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