Relationship between Synthesis Conditions and Photocatalytic Activity of Nanocrystalline TiO₂

Figure 3

TEM images of TiO₂ nanoparticles synthesized with different molar ratios of water and TTIP: (a and b) 50 and (c and d) 2. The TiO₂ synthesis was carried out at pH 7 and at a calcination temperature of 600°C.

(a)

(b)

(c)

(d)