2D/2D Ni-MoS2/C3N5 II-type Heterojunction with Interfacial Synergy for Enhanced Photocatalytic H2 Evolution

XPS: Surface elemental composition was determined by X-ray photoelectron spectroscopy (XPS, AXIS Ultra DLD); FTIR: Fourier transform infrared (FTIR) spectroscopy was performed using a Nicolet iS50 spectrometer to analyze the structure and properties of the molecules.AC-HAADF-STEM: The surface morphology was characterized using aberration-corrected high-angle annular dark-field scanning transmission electron microscopy (AC-HAADF-STEM, JEOL arm 200F);XRD: The crystalline structure of the prepared samples was analyzed using X-ray diffraction (XRD, D8 Advance) with Cu Kα radiation;UV: Ultraviolet-visible diffuse reflectance spectra (UV-vis DRS) were recorded with a UV-3600 Plus spectrophotometer, using barium sulfate as the reference;I-t 、 EIS and LSV:,the catalytic activity was investigated through photoelectrochemical analysis, I-t and EIS were conducted using a CHI 650e potentiostat (Shanghai Chenhua).