. 2024 Jan 17;9(4):4300–4316. doi: 10.1021/acsomega.3c05321

Table 1. Isotherm Constants for Basic Brown 1 (BB₁) and Basic Orange 2 (BO₂) Dye Adsorption by Fe₃O₄-Impregnated C. bonplandianus Biochar.

isotherm	dye	parameters	value
Langmuir	BB₁	q_m (mg/g)	0.320238
		K_L (L/mg)	–1.36819
		R²	0.55757
	BO₂	q_m (mg/g)	0.034131
		K_L (L/mg)	–0.00503
		R²	0.82415
Freundlich	BB₁	1/n	1.98564
		K_F (mg/g)	0.10940
		R²	0.9012
	BO₂	1/n	25.02735
		K_F (mg/g)	0.15035
		R²	0.95432

Table 1. Isotherm Constants for Basic Brown 1 (BB1) and Basic Orange 2 (BO2) Dye Adsorption by Fe3O4-Impregnated C. bonplandianus Biochar.