Assessment of the Use of Epicarp and Mesocarp of Green Coconut for Removal of Fluoride Ions in Aqueous Solution

Table 4

Maximum adsorption capacity of some adsorbents for fluoride ions removal.

Adsorbent	(mg·g^−1)	Reference
Mixed rare earth oxides of activated alumina	0.7400	[39]
Modified amberlite resin	0.0610	[40]
Granular acid-treated bentonite	0.2780	[41]
Natural chitosan	1.3900	[42]
Epicarp of green coconut	2.2265 (35°C)	This work
Mesocarp of green coconut	3.2253 (45°C)	This work