Kinetic parameters of pseudo-first-order and pseudo-second-order kinetic models for diclofenac adsorption over GO2–CTS5 and AGO2–CTS5.

Hydrogel	Pseudo-first-order model			Pseudo-second-order model
	k 1 (min−1)	q e,1 (mg g−1)	R 2	k 2 (g mg−1 min−1)	q e,2 (mg g−1)	R 2
GO2–CTS5	0.057	58.21	96.64	1.1 × 10−3	67.23	99.45
AGO2–CTS5	0.061	62.55	95.55	1.1 × 10−3	72.31	99.47