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

Table 2

Particle size effect on phase stability of TiO₂.

	Phase	Conditions	Particle size (nm)	Techniques	References
TiO2	Brookite	—	11 to 35	Sol-gel	[21, 73]
	Anatase	Room temperature	Below 11	Sol-gel	[21, 73]
	Rutile	Above 850°C	Higher than 35	Sol-gel	[21, 73]