Waste-Tire-Derived Activated Carbon as Efficient Adsorbent of P-Nitrophenol from Wastewater

Table 5

The analysis of pseudo-first-order and pseudo-second-order dynamics of RAC.

Absorbent	Pseudo-first-order				Pseudo-second-order
	qm (mg g^−1)	K1 (h^−1)	R^2	χ^2	qm (mg g^−1)	K2 (h^−1)	R^2	χ^2
650-2	64.7	7.38	0.98	0.11	76.491	3.21	0.97	0.39
650-0	38.67	5.03	0.90	2.69	33.609	6.14	0.85	4.43
650-1	24.78	1.09	0.92	0.00	10.785	–2.30	0.32	7.15
750-1	31.61	1.57	0.97	0.15	26.316	–1.08	0.56	4.89
750-2	42.66	2.67	0.99	0.04	40.491	–4.36	0.74	1.96