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

Figure 20

Ti (2p) peaks of TiO₂-SiO₂ mixed oxides prepared with different Ti : Si ratios: (a) Ti : Si = 1 : 10, (b) Ti : Si = 3 : 7, (c) Ti : Si = 7 : 5, and (d) Ti : Si = 7 : 3 (reprinted with permission from [90]).