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.
Catalytic reduction of (a) 4-NP before and after adding NaBH4 aqueous solution; (b) reduction of 4-NP with PVA/PAA/Fe3O4@AuNPs composite; (c) 2-NA before and after adding NaBH4 aqueous solution; (d) reduction of 2-NA with PVA/PAA/Fe3O4@AuNPs composite.
