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

Table 1

Average elemental composition (at%) of pure TiO₂ nanotubes and CaO-TiO₂ composite film synthesized in different concentrations of Ca(NO₃)₂·4H₂O.

Element; Ca(NO3)2·4H2O concentration	Ti (at%)	O (at%)	Ca (at%)	C (at%)
0	35.37	56.49	—	08.15
0.01	33.73	54.56	00.15	11.57
0.05	47.29	48.31	00.25	04.14
0.10	34.61	60.47	00.42	04.50