Modification of One-Dimensional TiO2 Nanotubes with CaO Dopants for High CO2 Adsorption
Figure 6
XRD pattern of TiO2 nanotubes incorporated with Ca in 1.2 M Ca(NO3)2 solution at different soaking period: (a) pure TiO2, (b) 24 hours, (c) 48 hours, and (d) 72 hours (A = anatase phase; T = titanium phase).