Kinetics, Isotherm, Thermodynamics, and Recyclability of Exfoliated Graphene-Decorated MnFe₂O₄ Nanocomposite Towards Congo Red Dye

Table 4

Compared BET surface area and maximum adsorption capacity of various materials.

No.	Adsorbents	BET surface area (m^2/g)	Maximum adsorption capacity (mg/g)	Ref.
1	EG@MnFe2O4	33.0	71.79	This study
2	MnFe2O4	45.7	19.57	This study
3	Anilinepropylsilica xerogel	150	22.62	[67]
4	NaBentonite	25.7	35.84	[68]
5	Kaolin	20.28	5.44	[68]
6	Zeolite	8.31	3.77	[68]
7	Bentonite	32	40.4	[69]
8	Kaolin	168.8	11.88	[70]
9	Activated red mud	20.7	7.08	[71]
10	Activated coir pitch	—	6.72	[72]