Switching the selectivity of the photoreduction reaction of carbon dioxide by controlling the band structure of a g-C3N4 photocatalyst

Abstract

The selectivity of the CO₂ photoreduction reaction in the presence of water vapour can be modulated by the band structure of a g-C₃N₄ photocatalyst. The major products obtained using bulk g-C₃N₄ with a bandgap of 2.77 eV and g-C₃N₄ nanosheets with a bandgap of 2.97 eV are acetaldehyde (CH₃CHO) and methane (CH₄), respectively.