Table 3. Kinetic Model and Apparent Reaction Rate.

	first order		modified Freundlich
photocatalyst	kapp × 10–3 (min–1)	R2	kapp × 10–3 (L g–1 min–1)	R2
10%WO3-TiO2	14.8	0.9958	96.8	0.9219
20%WO3-TiO2	14.1	0.9735	53.0	0.9717
30%WO3-TiO2	7.3	0.9576	13.0	0.9967
TiO2 P25	9.3	0.9533	11.5	0.9953
TiO2 P25(Rutile)	4.9	0.9871	6.6	0.9977
TiO2(Anatase)	6.0	0.9728	15.8	0.9973
WO3	0.6	0.8852	9.7	0.9594