Table 2.

The amount of fluoride ions adsorbed (q_e, mg/g) by PAniMSF (pH: 5, adsorbent dose: 1 g, and contact time: 60 min) at room temperature.

Fluoride ion, Co(mg/L)	Adsorption capacity (q e , mg/g)
	PAniMSF	SF
1	0.89	0.26
3	1.08	0.42
5	1.26	0.68
8	2.44	0.81
10	2.48	0.82
12	2.49	0.86
15	2.48	0.87

^∗ The q_e values of PAniMSF and SF for fluoride concentration at 10 mg/L are 2.48 and 0.82 mg/g, respectively.