Generation-3 Polyamidoamine Dendrimer-Silica Composite: Preparation and Cd(II) Removal Capacity

Figure 2

(a) FTIR spectra of pristine silica and G-3 PAMAM SGA; TGA and DTA spectra of (b) pristine silica and (c) G-3 PAMAM SGA; (d) comparison of TGA spectra for pristine silica and G-3 PAMAM SGA; SEM micrograph of G-3 PAMAM SGA (e) before and (f) after Cd²⁺ adsorption.