Synthesis of Acrylic Acid Polymer Hydrogel Nano Fe₃O₄ to Remove Ammonia from Sugarcane Field Waste

Figure 1

Image of the scanning electron microscope. (a) Synthesized hydrogel in the swollen state with 30 thousand times magnification. (b) Synthesized hydrogel in the dry state with 30 thousand times magnification.

(a)

(b)