Effect of the Amount of Water in the Synthesis of B-TiO₂: Orange II Photodegradation

Table 2

Lattice parameters (Å), crystal size (nm), and band gap (eV) of the photocatalysts. Physical properties derived based on and the tetragonal unit cell to TiO₂ anatase.

Photocatalyst	FWHM^a	Lattice parameters (Å)	(eV)	(nm)	Composition^b
TiO2-4	0.602	;	3.16	14	(A) 100%
BTiO2-0.5	0.272	;	2.96	30	(A) 84%
		;			(R) 16%
BTiO2-1	0.544	;	3.00	15	(A) 100%
BTiO2-4	0.766	;	3.14	11	(A) 100%
BTiO2-8	0.608	;	3.16	14	(A) 100%
BTiO2-16	0.337	;	3.00	24	(A) 89%
		;			(R) 11%

Full width at half maximum (FWHM).
Anatase (A) and rutile (R).