Adsorption Properties of Low-Cost Biomaterial Derived from Prunus amygdalus L. for Dye Removal from Water

Table 2

Kinetic model parameters and constants with statistical data.

Model	Parameter	Temperature (K)
		293	303	313
Pseudo-first-order	𝑞𝑒,cal (mg g^−1)	34.75	32.47	28.98
	𝑘1 (min^−1)	0.915	1.032	1.287
	𝑅^2	0.8038	0.8173	0.8470
	𝜒^2	2.839	3.221	3.413
	MSE	10.163	9.887	9.307
Pseudo-second-order	𝑞𝑒,cal (mg g^−1)	39.57	36.90	33.44
	𝑘2 (g mg^−1 min^−1)	0.00811	0.00767	0.00735
	ℎ (mg g^−1 min^−1)	12.70	10.44	8.22
	𝑅^2	0.9997	0.9993	0.9992
	𝜒^2	0.455	0.459	0.460
	MSE	1.494	1.362	1.213
Intraparticle diffusion	C (mg g^−1)	21.89	19.43	15.99
	𝑘𝑝 (mg g^−1 min^−1/2)	1.6912	1.6831	1.6769
	𝑅^2	0.8814	0.8703	0.8680
	𝜒^2	1.193	1.382	1.558
	MSE	4.465	4.479	4.496
	𝑞𝑒,exp (mg g^−1)	40.21	35.89	32.37