A Li–F co-doped g-C3N4/TiO2-B(001) heterostructure as an efficient hydrogen evolution photocatalyst

Li–F co-doping enhances the interfacial interaction of the Li@g-C 3 N 4 /F@TiO 2 -B(001) heterostructure, which has the lowest HER overpotential, promotes the separation of electron–hole pairs, and improves the photocatalytic performance.