Bimetallic Oxide Nanohybrid Synthesized from Diatom Frustules for the Removal of Selenium from Water

Table 3

Model parameters of Langmuir and Freundlich isotherms for adsorption of selenium.

	Langmuir model			Freundlich model
	(mg/g)
Se(IV)	277	0.205	0.95	1.21	0.0103	0.95
Se(VI)	0.48	0.252	0.95	6.07	0.0021	0.95

: the maximum sorption capacity of the sorbent; : Langmuir constant; : Freundlich constant; : correlation coefficient.