Table 3.

Specific parameters of the photocatalytic efficiency of Fe-doped TiO₂ nanoparticles.

Sample	k (10−3 min−1)	r2	% Dis. (30 min) *	% Dis. (90 min) *
Blank	0.7	0.97	3	5
0.00FeT	39	0.98	66	98
0.05FeT	44	0.98	71	98
0.10FeT	58	0.96	94	100
0.20FeT	33	0.97	51	100
0.70FeT	8	0.98	16	69
1.00FeT	5	0.99	15	36

* Dis: discoloration of Methyl Orange solution.