Fe<sub>3</sub>O<sub>4</sub> Nanoparticles Embedded Sodium Alginate/PVP/Calcium Gel Composite for Removal of Cd<sup>2+</sup>

<div>EDX spectra of the SPC gel balls (a) and the MSPC gel balls (b).</div>

Journal of Nanomaterials

Figure 3: Fe<sub>3</sub>O<sub>4</sub> Nanoparticles Embedded Sodium Alginate/PVP/Calcium Gel Composite for Removal of Cd<sup>2+</sup> 