Figure 7.
TEM images at different magnifications of: (a,b) rice husk-SBA-15 SiO2; (c,d) rice husk-GO/SBA-15 composite. Reprinted with permission from [212].
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.