Silver Doped TiO₂ Nanostructure Composite Photocatalyst Film Synthesized by Sol-Gel Spin and Dip Coating Technique on Glass

Figure 3

Scanning electron micrographs of the surface of TiO₂ films made from the precursor sol containing (a) no nanopowder, (b) ANPSGF-MC-Ag, and (c) MPC500SGF-MC-Ag. All the samples are heat treated for 1 hour at 500^°C.

(a)

(b)

(c)