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Table 7

Kinetic model parameters for the adsorption of VR3BS dye by SCG biochar composite

Kinetic model	Parameter/Value
Pseudo-first-order	q_e (mg/g)	1.19
	K₁	2.77E-6
	R²	0.86
Pseudo-second-order	q_e (mg/g)	0.96
	K₂	0.07
	R²	0.999
Intra-particle diffusion	K_diff	0.0092
Intra-particle diffusion	R²	0.93

Kinetic model	Parameter/Value
Pseudo-first-order	q_e (mg/g)	1.19
	K₁	2.77E-6
	R²	0.86
Pseudo-second-order	q_e (mg/g)	0.96
	K₂	0.07
	R²	0.999
Intra-particle diffusion	K_diff	0.0092
Intra-particle diffusion	R²	0.93