3.1.2. Water Absorption Capacity

The water absorption capacity of these hydrogels was high, indicating that they could effectively facilitate the removal of contaminants. From the results obtained for the %WA capacity, the following decreasing order can be observed: Hy03 > Hy10 > Hy04 > Hy01 > Hy09 (see Table 3). The highest water absorption capacity was achieved for the hydrogel that did not contain CNF; however, the remaining hydrogels that attained the highest %WA values contained 1% w w−<sup>1</sup> CNF in their structures.
