Enhanced Photoreduction Activity of Carbon Dioxide over Co₃O₄/CeO₂ Catalysts under Visible Light Irradiation

Table 1

Characteristic of Co₃O₄/CeO₂ catalysts with different mass fraction of Co₃O₄.

Catalyst mass fraction of Co3O4 doping (%)	BET surface area (m^2/g)	Average pore diameter (nm)	Total pore volume (cm^3g^−1)
0 (CeO2)	100.14	4.68	0.12
0 (commercial CeO2)	71.41	15.22	0.27
2.0	34.69	11.41	0.11
5.0	38.28	10.19	0.10
8.0	33.20	11.65	0.10
100 (Co3O4)	25.47	13.28	0.08