Figure 4.
Scanning electron microscopy (SEM) images of P25 (a); TiO2-1% Fe–N, pH ~5.5 (b); and TiO2-1%-Fe–N, pH ~8.5 (c).
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.