Table 3.

Parameters of first and second order kinetic models for dye degradation by TiO₂ NRs and TiO₂ NRs/CNTs nanocomposite.

Material	kinetic Model	Parameters	5 mg/L	10 mg/L	15 mg/L	20 mg/L	25 mg/L
TiO2 NRs	First order kinetic model	K1 (min−1) R2	0.011 0.996	0.0034 0.84	0.0031 0.87	0.003 0.86	0.0024 0.88
	Second order kinetic model	k2 (L/mol min) R2	0.029 0.83	0.0008 0.90	0.0004 0.91	0.0003 0.955	0.0002 0.908
TiO2 NRs/CNTs	First order kinetic model	K1 (min−1) R2	0.0281 0.95	0.0076 0.94	0.0058 0.976	0.0032 0.956	0.0029 0.938
	Second order kinetic model	k2 (L/mol min) R2	0.039 0.84	0.0045 0.962	0.0012 0.981	0.0004 0.999	0.0002 0.979