fig19
Figure 19. (A and B) SEM images of the TiO2 nanotube arrays[242]. This figure is used with permission from the American Physical Society. (C) SEM image of the TiO2-ACF photocatalyst[244]. This figure is used with permission from the Elsevier. (D) SEM image of the MWCNT-TiO2 composite[245]. (E) Schematic Energy diagram of Fe3+ doped TiO2[246]. This figure is used with permission from the Elsevier. (F) TEM image of the Pt-loaded TiO2 photocatalyst[247].
