Structural investigations on TiO2 and Fe-doped TiO2 nanoparticles synthesized by laser pyrolysis

Structural evolution and optical properties of C-coated TiO2 nanoparticles prepared by laser pyrolysis

“…The working principle of the laser pyrolysis method is based on the resonant laser light absorption by at least one of the reactive gases, which led to many advantages as nanoparticle producing technique. These advantages are presented elsewhere [14][15][16][17][18][19]. The laser used in C-doped TiO 2 nanoparticle production has been a standard CW CO 2 laser (10.6 m) working at 400 W and focused perpendicularly on the gas stream.…”

Development of the IR laser pyrolysis for the synthesis of iron–doped TiO2 nanoparticles: Structural properties and photoactivity

“…The Fe(CO) 5 vapors were carried by Ar flow. A special irradiation geometry employing a triple central nozzle system was used [17]. Complementary Ar flows are employed for the confinement of reactant gases/nucleated particles towards the flow axis and for flushing the windows, respectively.…”

“…Sensitized mixtures containing TiCl 4 (vapor) and air as gas -phase precursors were used. Introducing iron pentacarbonyl in the reactive mixture, iron-doped TiO 2 ultrafine powders, with 4-25 Fe/Ti (in at.%) doping levels have been prepared [17].…”

Structural and spectroscopic study of the Fe doped TiO2 thin films for applications in photocatalysis

“…The anatase phase absorbs only light below the wavelength of 380 nm. Different approaches have been reported in the literature to improve the photocatalytic activity of anatase TiO 2 [1,4,5]. It has been reported that by bringing the particle size to nano range the surface area can be increased and hence the photocatalytic activity [4].…”

“…In most of the reported works the catalyst TiO 2 was in powder form [1,[5][6][7]. TiO 2 in thin film form has the advantage that the catalyst can be easily removed from the treated water and also prevents the aggregation of suspended powder.…”