Research Article

Controllable Architecture of Mesoporous Double-Nanoshell SiO2/TiO2 Hollow Tube Based on Layer by Layer Method

Figure 6

Structural characterization of SiO2/TiO2 double-nanoshell hollow tubes: (a) nitrogen adsorption-desorption isotherms and (b) pore size distribution calculated from the adsorption branch of isotherms.
(a)
(b)