The superimposed (CD- g.p(SA-MAA) hydrogel synthesized from Ceratophyllumdermersum, sodium alginate, and methyl acrylic acid was prepared in the presence of crosslinking agent (MBA) and potassium persulfate (KPS). The structural and surface characteristics of the prepared surface were studied and diagnosed by means of the field emission scanning electron microscope (FE-SEM) technique.Four main factors were studied including the effect of surface weight, time, shaking speed, and temperatures on the adsorption process of lead ions on the synthesized surface with different weights, times, speeds, and temperatures, respectively. While the current results demonstrate that the best weight was 0.05g, the best time was 120 minutes, and the best shaking speed was 120rpm. As for the effect of temperature, the results show that the process of lead ion adsorption on the adsorbent surface decreases with increasing temperature. The results of the current study also indicate that the removal rate of lead ions on the synthesized surface was 68.5%.

Heavy elements, Lead Pb (II), nano-adsorption, Hydrogel