Sorption Profile of Phosphorus Ions onto ZnO Nanorods Synthesized via Sonic Technique

Table 1

Estimated pseudo first- and second-order kinetic models parameters for phosphorus sorption onto ZnO nanorods.

Kinetic model	() exp (mg/g)	Pseudo first-order			Pseudo second-order
Nitrate concentration (mg/L)		() cal (mg/g)	(min^−1)		() cal (mg/g)	(g/mg min)
1	0.193	0.19	−0.052	0.998	0.34	0.089	0.97
10	1.89	1.88	−0.0053	0.987	2.56	0.018	0.95
25	4.35	4.3	−0.0053	0.99	5.87	0.0079	0.94
50	8.5	8.9	−0.006	0.99	11.67	0.0041	0.92
75	12.54	12.9	−0.076	0.99	22.98	0.00114	0.91
100	16.25	17.1	0.078	0.97	25.2	0.0012	0.90