Anodic CaO-TiO₂ Nanotubes Composite Film for Low Temperature CO₂ Adsorption

Table 2

CO₂ adsorption capacity of the anodized CaO-TiO₂ composite film.

Ca(NO3)2·4H2O concentration	CO2 adsorption capacity (mmol/g)
0.01 M	2.45
0.05 M	1.89
0.10 M	2.36