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.
Schematic diagram of the dual-enhancement mechanism of structural carboxyl defect sites on the promoted H2 production activity of g-C3N4. Left: structure diagrams of defective carboxyl site with hydrophilic properties facilitating the H2O to H2 reaction; right: corresponding charge distribution map with electron-rich site facilitating the H+ to H2 reaction.
