Preparation of TiO₂ Nanoparticle/Nanotube Composites via a Vapor Hydrolysis Method and Their Photocatalytic Activities

Figure 3

Nitrogen adsorption-desorption isotherm of the as-prepared samples with the corresponding pore size distribution curve inserted: TNTs (a), TNTs-0-120 (b), and TNTs-23-120 (c).

(a)

(b)

(c)