Preparation and Heavy Metal Ions Chelating Properties of Multifunctional Polymer-Grafted Silica Hybrid Materials

Figure 4

Scanning electron microscopy (SEM) images of (a, b) uncoated silica at different magnifications, (c, d) coated silica at different magnifications, and (e) polymer-coated silica, observation at crazing angle.

(a)

(b)

(c)

(d)

(e)