Adsorptive Removal of Methylene Blue Dye Using Biowaste Materials: Barley Bran and Enset Midrib Leaf

Table 4

The maximum adsorption capacity of some adsorbents for MB adsorption.

Adsorbents	pH	(mg/g)	Equilibrium time (h)	Dose (g/L)	Reference
Wheat shell	5-9	16.6	1	10	[34]
Rice husk	—	40.6	0.67	4	[35]
Activated carbon from palm stem	6	110.8	0.3	1.25	[24]
Date palm leaf powder	6.5	43.1	2.67	10	[36]
Neem leaf powder	5-8	8.8	—	—	[37]
Rice husk	5-7	21.9	24	6	[38]
Rice husk ash	5-7	12.8	24	6	[38]
H2SO4 activated banana peel	10	250.0	24	0.8	[32]
Sugarcane bagasse	—	9.4	24	2.0	[39]
Tea waste	8	113.1	24	4.0	[40]
BB	5.07	63.2	4	2.5	Present study
EVML	5.66	35.5	1	2.5	Present study