Isotherm parameters for MB adsorption on the CMC-Alg/GO hydrogel beads.

Models	Parameters	CMC-Alg/GO beads
Langmuir isotherm	q max (mg g−1)	45.045 ± 0.019
	K L (L mg−1)	0.665
	R L	0.09 to 0.75
	R 2	0.756
	RMSE	0.0199
Freundlich isotherm	K F	7.505
	1/n	0.587
	R 2	0.975
	RMSE	0.28622
Dubinin–Radushkevich	q max (mg g−1)	18.315 ± 0.273
	β (mol2 kJ−2)	0.0224
	E a (kJ mol−1)	4.724
	R 2	0.867
	RMSE	0.638