Fe3O4 nanostructure films as solar-thermal conversion materials for ammonia synthesis

Abstract

Here, we report that black photothermal materials elevate solar heating temperatures across high solar absorption and low infrared radiation. Fe₃O₄ nanostructure films can be heated to 350 °C under light irradiation, and this system shows effective visible-light-driven ammonia synthesis production of 3677 μg g⁻¹ h⁻¹ under gas–solid phase catalysis without noble metals.