Synthesis and Characterization of Cockle Shell-Based Calcium Carbonate Aragonite Polymorph Nanoparticles with Surface Functionalization

Figure 7

FESEM micrographs showing an overview of (a) cockle shell-based calcium carbonate aragonite nanoparticles before surface modification and (b) surface functionalized cockle shell-based calcium carbonate aragonite nanoparticles viewed at low magnifications of 20,000x and 25,000x, respectively.

(a)

(b)