Research Article
A Water-Based Synthesis of Hybrid Silica/Hyperbranched Poly(ethylene imine) Nanopowder for Heavy Metal Sorption from Aqueous Solutions
Figure 2
FTIR spectra of HBPEI, SiO2-HBPEI-0.16, SiO2-HBPEI-0.35, SiO2-HBPEI-0.8, and SiO2-free of HBPEI.