Table 3: Comparison between the three different prepared zirconium tungstovanadate ion exchangers and those cation exchangers reported in the literature.

Ion exchange materials (IEC) for Na+

Zirconium tungstovanadate(S6)(present study)2.5
Zirconium vanadate [18]1.8
Zirconium oxide [19]0.5
Zirconium(IV) selenomolybdate [8]0.94
Zr(IV) tungstomolybdate [5]2.4
Zirconium iodovanadate [7]2.2
Bismuth(iii) iodophosphate [20]0.5
Titanium(IV) molybdophosphate [21]1.3