Figure 3.
SEM images of: (a) cellulose; (b) PAM; (c,d) PAC@Fe3O4 and its EDX image before adsorption; and (e,f) PAC@Fe3O4 and its EDX image after adsorption of Pb(II).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.