Figure 2.
Schematic representation showing a different (alternative) purification route for rice husk ash for the growth and isolation of SiO2 NPs. Reprinted with permission from [83].
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.