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

Table 4

UV-visible absorption data of polyaniline samples in different solvents.

Sample	Peak position (nm)
	NMP	CHCl3	m-Cresol
PANI-HCl	312, 575, 620	224, 428, 651	314, 556
PANI ZTIP	308, 558	226, 326, 554	312, 534
H^+ form of PANI ZTIP	319, 617	243, 328, 554	330, 366, 963