Table 1.

Parameters for kinetics study on the adsorption of DC antibiotic onto rGO/nZVI composite.

Parameter	Concentration (mg L−1)
	25	50	75	100
qe, exp (mg g−1)	9.40	17.27	23.07	28
Pseudo 1st order study
qe, cal (mg g−1)	4.55	8.54	15.90	31.17
k1 (min−1)	0.03	0.036	0.04	0.042
R2	0.944	0.884	0.974	0.974
Pseudo 2nd order study
qe, cal (mg g−1)	9.76	15.94	24.72	31.17
k2 (mg g−1)	0.024	0.013	0.0069	0.002
R2	0.994	0.994	0.996	0.996
Elovich study
β (g mg−1)	0.82	0.48	0.236	0.167
α (mg g min−1)	28.53	77.69	88.28	95.23
R2	0.970	0.940	0.989	0.986