Fe(III)-C3N4 hybrids photocatalyst for efficient visible-light driven nitrogen fixation.

Solar-driven reduction of nitrogen to ammonia is a promising strategy for energy storage and conversion. Herein, a new strategy of modifying Fe(III) onto carbon nitride is reported showing enhanced photocatalytic nitrogen fixation. The Fe(III) and nitrogen vacancies narrow down the carbon nitride intrinsic bandgap and suppress the radiative electron-hole recombination. Fe(III)-C 3 N 4 therefore shows potential as a new high-efficiency artificial photosynthesis ammonia. Image 1 • A new strategy of preparing enriched N-vacancy C 3 N 4 by introducing Fe(III) is developed. • The high separation rate of electron-hole and broad bandgap of C 3 N 4 are achieved. • The Fe(III)-C 3 N 4 effectively enhances the visible-light nitrogen photofixation activity. [ABSTRACT FROM AUTHOR]