Bridging structure and performance in ZnIn₂S₄ photocatalysts: Mitigating photocorrosion and recombination toward...

Photocatalytic technology offers a sustainable route for environmental remediation and clean energy production, with ZnIn₂S₄ (ZIS) emerging as a promising candidate. However, its practical application is severely limited by rapid charge recombination and photocorrosion. Unlike existing reviews that catalog modification strategies in isolation, this review adopts a distinctive bottleneck-oriented perspective-overcoming photocorrosion and charge recombination-as a unifying framework to bridge structural engineering with environmental performance. Recent advances in rational structural modulation that effectively enhance the stability and activity of ZIS toward H₂ evolution, CO₂ reduction, H₂O₂ synthesis, and pollutant degradation are critically assessed. Finally, we outline the remaining challenges and propose future research directions for robust ZIS-based photocatalysts toward sustainable environmental and energy solutions.