▎ 摘　　要

Development of highly active photocatalysts is one of the key topics for H(2 )production. Modifying the microstructure and exploring the electron transfer mechanism of the materials are very vital to achieve high-quality catalysts. Herein, by means of the bridging of rare-earth ions (Ln), a novel nanohybrid (GO-Ln-DPDPP) constructed of graphene oxide (GO) pillared with 5,15-diphenyl-10,20-di(4-pyridyl)porphyrin (DPDPP) was prepared by electrostatic interaction combined with coordination interaction. It was shown that the microstructure and morphology of the nanohybrid were greatly affected by the Ln introduced. Meanwhile, photoproduced electron transfer in the hybrid can be effectively promoted by the Ln implanted in the GO. Photocatalytic H-2 production and the electron transfer mechanism were further explored. It was shown that, on the basis of the bridging of the Ln, lower interfacial resistance and higher separation of electron and hole caused by the strong interaction between DPDPP and GO were responsible for the increased photocatalytic activity of H-2 production. These results indicate the key role of the interfacial modulation of the architectures in achieving an efficient photocatalyst for substantial improvement in photocatalytic activity.