Table 2.

Theoretical Isothermal fitting experimental results.

Isothermal Model	Adsorbent	Metal Ion	Parameter (Unit)	Value
Langmuir	CS	Cu2+	qm (mg·g−1)	133
			kL (L·g−1)	29.8
			1 R2	0.998
			ARE	3.30%
		Pb2+	qm (mg·g−1)	54
			K (L·g−1)	42.6
			R2	0.998
			ARE	4.50%
	CS-g-TA	Cu2+	qm (mg·g−1)	136
			K(L·g−1)	32.3
			R2	0.998
			ARE	4.20%
		Pb2+	qm (mg·g−1)	80.6
			K (L/g)	39.6
			R2	0.997
			ARE	3.50%

¹ fitting coefficient.