Adsorption of Hg(II) from Aqueous Solution Using Adulsa (Justicia adhatoda) Leaves Powder: Kinetic and Equilibrium Studies

Table 3

Comparison of monolayer maximum adsorption capacity of Hg(II) ion with various adsorbents.

Biosorbents	𝑞𝑚 (mg g^−1)	References
Wheat bran	70.0	[21]
Waste rubber	4.0	[24]
Eucalyptus bark	33.1	[18]
Coir pith	154	[31]
Furfural	174	[33]
Walnut shell	151.51	[22]
Peanut hull	110	[28]
Carica papaya	155.6	[19]
Sago waste	55.6	[32]
Fruit shell of Terminalia catappa	94.4	[34]
Adulsa (Justicia Adhatoda) leaves powder	107.5	Present study
Polyaniline/attapulgite	800	[35]
Moss	94.4	[36]
Malt spent rootless	50	[37]
Acrylic textile fibre	290–710	[38]
Potamogeton natans	180	[39]
Macroalgae	329	[40]
Fertilizer waste	3.62×10^−3	[41]
Camel bone charcoal	28.2	[42]
Garlic (Allium sativum L.)	0.6497	[43]
Carbon aerogel	34.96	[44]