. 2019 Feb 12;9(2):250. doi: 10.3390/nano9020250

Table 3.

The second-order rate constant (k₂) values for the photocatalytic degradation of MB.

	4 mg·L⁻¹	4 mg·L⁻¹	4 mg·L⁻¹	7 mg·L⁻¹	7 mg·L⁻¹	7 mg·L⁻¹	9 mg·L⁻¹	9 mg·L⁻¹	9 mg·L⁻¹
	K₂ (min⁻¹)	q_e (mg·g⁻¹)	R²	K₂ (min⁻¹)	q_e (mg·g⁻¹)	R²	K₂ (min⁻¹)	q_e (mg·g⁻¹)	R²
PES	0.003	7.52	0.979	0.001	7.57	0.778	0.0003	18.18	0.397
UV-irr. PES	0.004	6.06	0.999	0.00002	60.24	0.859	0.0066	14.28	0.996
TiO₂/PES	0.005	10.43	0.998	0.007	30.30	0.999	0.0018	29.41	0.992
UV-irr. TiO₂/PES	0.003	19.37	0.996	0.00086	36.36	0.999	0.0007	50	0.999