A Brief Overview of TiO₂ Photocatalyst for Organic Dye Remediation: Case Study of Reaction Mechanisms Involved in Ce-TiO₂ Photocatalysts System

Table 1

Bandgap energies of semiconductors as photocatalyst.

Photocatalyst	Bandgap energy (eV)
ZrO2	5.0
ZnS	3.6
TiO2 (anatase)	3.2
TiO2 (rutile)	3.0
WO3	2.8
SnO2	2.5
Fe2O3	2.3
GaP	2.25
V2O5	2.6
CuO	1.7
CdSe	1.7
MnO2	0.25
CeO2	2.94