Specifically designed magnetic biochar from waste wood for arsenic removal

Table 5 The adsorption dynamics parameters of different models

Adsorption model		PB	1FeC	1Fe2MnC
Pseudo-first-order	k₁ (min⁻¹)	0.003	0.002	0.003
	q_maxdy (mg g⁻¹)	0.12	0.50	0.48
	R²	0.980	0.919	0.938
Pseudo-second-order	k₂ (mg g⁻¹ min⁻¹)	0.056	0.029	0.031
	q_maxdy (mg g⁻¹)	0.14	0.67	0.62
	R²	0.981	0.986	0.991

ISSN: 2468-2039