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

Table 3

Characteristic of Co₃O₄/CeO₂ catalysts with 5 wt.% Co₃O₄ doping at different calcination temperatures.

Calcination temperature (°C)	BET surface area (m^2/g)	Average pore diameter (nm)	Total pore volume (cm^3g^−1)	The crystallite size of CeO2 (nm)
300	41.16	10.61	0.11	37.5
400	38.28	10.19	0.10	35.4
500	30.88	15.13	0.12	41.8