Oxidative Polymerization of Aniline on the Surface of Sisal Fibers (SFs) as Defluoridation Media for Groundwater

Table 4

Summary of fluoride uptake capacity of polyaniline-based adsorbents.

Adsorbent	Adsorption capacity (mg/g)	Isotherm	Reference
Doped polyaniline	0.78	Freundlich	[13]
Polyaniline/polypyrrole	3.73	Freundlich	[49]
Polyaniline/montmorillonite	2.3	Freundlich	[30]
Polyaniline/alumina	6.6 mg/g	Freundlich/Langmuir	[47]
Polyaniline/chitosan	5.9	Freundlich/Langmuir	[50]
Polyaniline/sisal fiber	2.49	Freundlich/Langmuir	This study