Removal of Hazardous Pollutants from Wastewaters: Applications of TiO₂-SiO₂ Mixed Oxide Materials

Figure 19

TEM images of TiO₂ nanoparticles prepared with different silica content and solvent composition: (a) pure TiO₂ (ethanol to water = 4 : 1), (b) pure TiO₂ (ethanol to water = 1 : 8), (c) 0.2 SiO₂-0.8 TiO₂ (ethanol to water = 4 : 1), and (d) high resolution TEM (HRTEM) image of (c) (reprinted with permission from [89]).

(a)

(b)

(c)

(d)