Characterization of Co²⁺- and Fe³⁺-Codoped TiO₂ Nanomaterials for Photocatalytic Degradation of Organic Pollutants under Visible Light Irradiation

Table 4

Comparison of MB degradation of the TiO₂-codoped samples of this work with other materials.

Materials	Synthetic conditions	(m^2·g^-1)	Degradation percentage of MB	References
Bi2O3	Calcination method at 500°C for 6 h	2.9	70% after 4 h under visible light irradiation	[24]
CaBi6O10	Impregnation-calcination method at 650°C for 12 h	2.5	97% after 4 h under visible light irradiation	[24]
CeO2/V2O5	Thermal decomposition at 400°C for 30 min	—	64.2% after 4 h under visible light	[25]
CeO2/CuO	Thermal decomposition at 400°C for 30 min	—	70.1% after 4 h under visible light	[25]
ZnO/CdO	Thermal decomposition at 350°C for 3 h	—	75% after 4 h under visible light	[26]
g-C3N4-CdS	Precipitation method	166.5	90.45% after 3 h under visible light	[27]
F-doped TiO2	Sol-gel method, calcined at 500°C for 1 h	39.6	90% after 4 h under visible light	[28]
TiO2-1%Co-2.5%Fe	Solvothermal method at 180°C	174	90% after 2 h under visible light	This work