Table 2. Kinetic Parameters for Adsorption of Azine I onto AgCl/PAAN-CS (IV and V) and Adsorption Isotherm Parameters at pH = 2.

	IV		V
model	model coefficient	R2	model coefficient	R2
pseudo-first order	Qe = 22.0023 mg g–1	0.9115	Qe = 17.2845 mg g–1	0.9779
	K1 = 0.0868 min–1		K1 = 0.0085 min–1
pseudo-second order	Qe = 22.0023 mg g–1	0.9760	Qe = 17.2845 mg g–1	0.9981
	K2 = 40.6765 g mg–1 min–1		K2 = 62.6728 g mg–1 min–1
Langmuir model	b = 0.0633 L mg–1	0.9999	b = 0.0682 L mg–1	0.9996
Freundlich model	1/n = 0.2397	0.9739	1/n = 0.2901	0.9987
	n = 4.1718		n = 3.4470
	Kf = 36.1234 mg–1		Kf = 38.4241 mg–1
Temkin isotherm	B = 29.957 J mol–1	0.9282	B = 29.454 J mol–1	0.9760
	Kt = 0.5038		Kt = 0.4890