Elaboration and characterization of TiO2 nanoparticles incorporated in SiO2 host matrix

Synthesis and characterization of silica–titania nanocomposite via a combination of sol–gel and mechanochemical process

“…As the milling time increases beyond 10 h, merging of the two peaks occurred and contributed to a broad transmittance peak as shown in sample milled for 20 h. This board peak has also been detected and similar to those samples calcined at 950 • C, suggesting that the complete Si-O-Si bond has been formed. Besides, Ti-O-Ti bond may be present in the range of 400-600 cm −1 [11] for all of the investigated samples. This bond is more obvious for sample milled at the longest period, if compared with others.…”

Optical Properties of TiO2Nanopowder Doped by Silver (Copper) during Synthesis or PVD Method

“…As a result of their properties, titanium dioxide nanopowders have a potentially wide application in various fields of human activity [1][2][3][4][5][6][7][8][9]. In recent years, there have been many reports on photocatalytic reactions, which occur in titanium dioxide nanopowders to reduce and convert pollutants from the water and gas phases.…”

Fabrication and photoluminescence of monolithic silica glass doped with alumina nanoparticles using SiO₂-PVA nanocomposite

“…A solgel method has been used to fabricate silica glasses doped with various nanoparticles, and this technique allows controls over both the concentration and dispersion state of the dopants as a means of obtaining desirable properties in the glass. For instance, silica glasses doped with SnO 2 , 1) TiO 2 , 2) ZnO 2) or Al 2 O 3 3),4) have been prepared using the solgel method. Glasses doped with Al 2 O 3 particles are of interest in the field of functional optical materials, because these show a strong photoluminescence (PL) band in the range of 400 600 nm upon UV excitation.…”