Chemical Structure of TiO₂ Nanotube Photocatalysts Promoted by Copper and Iron

Figure 3

N₂ adsorption/desorption isotherms and the corresponding Barrett-Joyner-Halenda pore size distribution of the (a) nanosize TiO₂, (b) TNT, (c) Cu-TNT, and (d) Fe-TNT.

(a)

(b)

(c)

(d)