Kinetic parameters of the pseudo-second and pseudo-first orders for adsorption of CV dye.

Adsorbent	C o (mg L−1)	q e, exp (mg g−1)	Pseudo-first order		Pseudo-second order
			k 1 (min−1)	R 2	k 2 × 10−3 (g mol−1 min−1)	R 2
Sr-MOF	100	69.00	0.001	0.888	0.05	0.989
5 wt% PWA/Sr-MOF	100	78.11	0.149	0.956	6.29	0.996
10 wt% PWA/Sr-MOF	100	81.80	0.165	0.985	6.67	0.995
15 wt% PWA/Sr-MOF	100	91.84	0.174	0.965	7.30	0.993
25 wt% PWA/Sr-MOF	100	99.95	0.313	0.995	7.47	0.999
35 wt% PWA/Sr-MOF	100	87.42	0.196	0.921	7.11	0.998
45 wt% PWA/Sr-MOF	100	83.64	0.179	0.935	6.34	0.997