fig2

Figure 2. Special morphology-enhanced photocatalytic hydrogen production. (A) Schematic process for preparing spherical, rod-shaped and cubic LaNiO₃ and their corresponding composite photocatalysts with ZnCdS; (B) Comparison of hydrogen evolution over different photocatalysts to indicate the largest H₂ evolution by rod-shaped ones. These two figures are quoted with permission from Zhao et al. Copyright (2023) Elsevier Ltd^[61]; (C) Schematic diagram of hollow tubular C₃N₄/ZIS composite for photocatalytic hydrogen production; (D and E) Hierarchical SEM observations of typical CN/ZIS. These three figures are quoted with permission from Chen et al. Copyright (2022) Elsevier Ltd^[54]; SEM images of (F) CeO₂ nanorods/CdS and (G) CeO₂ nanoflower/CdS; (H) Hydrogen evolution rates of different photocatalysts. These three figures are quoted with permission from Liu et al. Copyright (2023) American Chemical Society^[62]. SEM: Scanning electron microscopy; CN/ZIS: carbon nitride/ZnIn₂S₄.