Banana Fibers as Sorbent for Removal of Acid Green Dye from Water

Table 1

Adsorption kinetic parameters for banana stalk, stem, and leaves sorbents based on pseudo-first-order, pseudo-second-order, and intraparticle diffusion (Dunwald-Wagner) models.

Sorbent	Conc. (mg/L)	(mg/g)	Pseudo-first-order			Pseudo-second-order			Dunwald-Wagner
			(min^−1)		(mg/g)	(g/mg·min)		(mg/g)	(min^−1)
Banana leaves	750	9.4752	0.1081	0.8724	3.1937		0.9993	9.3985	0.09834	0.8937
	1000	11.0147	0.3026	0.8604	5.2204		0.9924	11.5473	0.2867	0.8529
	1500	18.4032	0.02602	0.8936	8.5605		0.9970	16.5837	0.2188	0.9308
Banana stem	750	8.0303	0.1382	0.8248	4.4066		0.9657	8.1433	0.1283	0.8187
	1000	10.5425	0.1635	0.7976	3.8107		0.9897	10.1215	0.1488	0.7922
	1500	17.0160	0.1350	0.8413	10.2612		0.9471	16.8634	0.1198	0.8302
Banana stalk	750	7.2834	0.1069	0.9194	3.2984		0.9865	7.2046	0.09742	0.9137
	1000	10.3923	0.05182	0.8444	2.9833		0.9984	9.8328	0.04721	0.8558
	1500	15.3295	0.08590	0.9470	6.8328		0.9957	15.4321	0.07853	0.9445