fig6

Figure 6. Interface-enhanced photocatalytic hydrogen production. (A) HR-STEM image to determine the lattice fringe of CdTe/V-In₂S₃ (scale bar 2 nm); (B) Schematic illustration of the energy band structure of CdTe and V-In₂S₃ before and after contact. ΔΦ represents the Fermi level difference between CdTe quantum dot and V-In₂S₃, and W represents the depletion layer of CdTe and V-In₂S₃; (C) Time-dependent photocatalytic overall water splitting profiles of CdTe/V-In₂S₃ hybrids. These three figures are quoted with permission from Zhang et al. Copyright (2022) Springer Nature^[37]; (D) Schematic for charge transfer over ternary CdS@MoS₂/Ti₃C₂ photocatalysts during photocatalytic H₂ evolution, where LA refers to lactic acid as the sacrificial agent; (E) TEM and (F) HRTEM images of CdS@MoS₂/Ti₃C₂ composites. These three figures are quoted with permission from Wu et al. Copyright (2023) Elsevier B.V^[75]; (G) HRTEM image on interface between tetra(4-sulfonatophenyl) porphyrin (TPPS) and perylene diimide (PDI); (H) Left: the frontier molecular orbital distribution of TPPS and PDI at the interface; Right: schematic diagram of interfacial interaction of co-assembly supramolecular TPPS/PDI. These two figures are quoted with permission from Yang et al. Copyright (2022) Wiley-VCH GmbH^[78]. HRTEM: High-resolution transmission electron microscopy; TEM: transmission electron microscopy; HR-STEM: high-resolution scanning transmission electron microscopy; LA: lactic acid; HOMO: highest occupied molecular orbital; LUMO: lowest unoccupied molecular orbital.