Photocatalytic reduction of CO₂ under visible light over Fe/TiO₂/rGO Nanocomposites by one-step Hydrothermal Synthesis

Abstract

Hydrocarbon fuels production from photocatalytic CO2 reduction reaction is a promising route for the energy crisis and climate change, but its industrialized application is limit by lacking of photocatalytic activity, poor selectivity and unsatisfied stability of photocatalysis. In this work, we describe the design and fabrication of Fe/TiO2/rGO nanocomposites to promote the separation and transfer of photogenerated electrons. Due to the doping of Fe, Fe ions form a doping level near the conduction band of TiO2, the composite material can absorb visible light, some photogenerated electrons are transferred to the surface of graphene, which further reduces the electron-hole recombination rate. This work provides some references for the field of photocatalytic decarburization.