Table. 5. Comparison of various adsorbents for adsorption of CR dye.

From: Reusable kaolin impregnated aminated chitosan composite beads for efficient removal of Congo red dye: isotherms, kinetics and thermodynamics studies

Adsorbent

qmax (mg/g)

pH

Equilibrium time (min)

References

Cabbage waste powder

2.31

8

180

66

Chitosan–vanadium-titanium-magnetite composite

90.91

6

720

4

Kaolin

5.44

7.5

1440

47

Coal-based mesoporous activated carbon

53

10

1800

15

Modified commercial zeolite catalyst

21.11

7

90

67

Bentonite and Modified Bentonite

25.38

60

14

Chitosan hydro-beads

93

6

1440

68

Magadiite-chitosan composite beads

200

6.5

210

69

Bagasse fly ash and activated carbon

11.88

7

240

70

Acid activated red mud

7.08

7

90

71

K@AM-CTS composite beads

104.16

7

45

This work