Biosorption of Lead Ions from Aqueous Solution Using Ficus benghalensis L.

Table 4

Kinetic constants for lead onto Ficus  benghalensis  L.

Initial concentration; (mg/L)	Pseudo-first-order			Pseudo-second-order
	Rate constant; 𝑘1 (min^−1)	Amount of lead absorbed; on adsorbent,; 𝑞𝑒 (mg/g)	Correlation coefficient 𝑅^21	Rate constant; 𝑘2 (min^−1)	Amount of lead absorbed; on adsorbent,; 𝑞𝑒 (mg/g)	Correlation; coefficient 𝑅^22
20	0.6032	9.532	0.9695	0.1165	5.535	0.9996