Coupling Photothermal Effect in N-Doped Hollow Carbon Spheres with ZnIn₂S₄ Boosts Solar Hydrogen Evolution.

ABSTRACT: To address the challenges of low solar energy utilization efficiency and rapid recombination of photogenerated charge carriers in photocatalytic hydrogen evolution, this study successfully constructed a composite photocatalyst of ZnIn₂S₄ (ZIS) supported on N-doped hollow carbon spheres (N-HCS), denoted as ZIS/N-HCS, via a combination of template etching and in situ growth strategies. Characterization results demonstrate that this hollow structure possesses a high specific surface area (48.41 m²/g) and a narrowed bandgap (2.41 eV), achieve broad-spectrum light absorption, thereby enabling the catalyst to generate a local hot spot temperature of 136 °C under AM1.5G conditions. The optimized ZIS/N-HCS-0.30 sample exhibited a significantly enhanced photocurrent

SUBMITTER: He S 

PROVIDER: S-EPMC12655824 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature