Synthesis of Iron-Modified Biochar Derived from Rice Straw and Its Application to Arsenic Removal

Table 3

Kinetic adsorption models.

qe(exp) (mg/g)	Pseudo-first-order model			Pseudo-second-order model
	qe(cal) (mg/g)	K1 (g/mg/min)	R^2	qe(cal) (mg/g)	K2 (g/mg/min)	R^2
28.49	3.238	0.0051	0.844	30.53	0.0892	0.988