Studies on Ion-Exchange Properties of Polyaniline Zr(IV) Tungstoiodophosphate Nanocomposite Ion Exchanger

Table 6

IEC of various ions on polyaniline Zr(IV) tungstoiodophosphate ion exchanger.

Exchanging ions	pH of the metal solution	Ionic radii (Å)	Hydrated ionic radii (Å)	Ion-exchange capacity (meq·dry g^−1)
Li^+	3.3	0.68	3.40	4.2
Na^+	5.0	0.97	2.76	5.3
K^+	6.8	1.33	2.32	5.9