The kinetic parameters and intra-particle diffusion parameters of four SAC.

Adsorbents	First-order kinetic model			Second-order kinetic model			Intra particle diffusion parameters
	q e (mg g−1)	k 1 (min−1)	R 2	q e (mg g−1)	k 2 (g mg−1 min−1)	R 2	K P1 K P2 (mg·(g min1/2)−1)	R 1 2 R 2 2
SACN′	0.187	0.008	0.879	1.789	0.395	0.984	0.014	0.047
							0.005	0.969
SACU	4.209	0.008	0.839	4.231	0.019	0.869	0.115	0.963
							0.125	0.934
SACPF′	11.061	0.009	0.868	8.521	0.006	0.955	0.206	0.97
							0.343	0.843
SACU–PF′	8.698	0.007	0.953	8.767	0.007	0.996	0.248	0.969
							0.288	0.891