Intermediate-mediated strategy to horn-like hollow mesoporous ultrathin g-C3N4 tube with spatial anisotropic charge separation for superior photocatalytic H2 evolution

Horn-like hollow mesoporous ultrathin g-C3N4 tubes are developed via an intermediate-mediated strategy, which are allowed high surface area and efficient spatial anisotropic charge separation between outer and inner shells of g-C3N4 tubes, thus demonstrating outstanding photocatalytic H2 evolution with an AQE of 14.3% at 420 ± 15 nm and efficient CO2 reduction activity.301