Adsorption parameters of Langmuir and Freundlich equations and correlation coefficients for the adsorption of CV dye onto rGO/Fe₃O₄ NCs adsorbent at 25 °C.

Adsorbent	Langmuir parameters			Freundlich parameters
	q max (mg g−1)	K L (L mg−1)	r 2	K F (mg g−1) (L mg−1)1/n	n	r 2
rGO/Fe3O4 NCs	62	0.150	0.9985	2.14	0.870	0.9925