Interfacial lattice relaxation and S-Zn charge channel engineering in Cd₀.₉Zn₀.₁S/ZnWO₄ S-scheme heterojunction photocatalysts

In the S-scheme heterojunction, photogenerated electrons from the oxidation photocatalyst recombine with holes from the reduction photocatalyst, enhancing redox potential and boosting photocatalytic activity. However, the recombination mechanism at these interfaces remains largely unexplored. In this study, we design a Cd 0.9 Zn 0.1 S/ZnWO 4 (CZS/ZWO) S-scheme heterojunction model guided by theoretical predictions. Remarkably, a nano-tetrapod-shaped CZS/ZWO S-scheme heterojunction is synthesized via a simple solvothermal and ultrasonic self-assembly method, achieving hydrogen evolution performance under visible light irradiation for 3 h that is 3.69 times higher than CZS alone and 4.63 times higher than ZWO…

• NS
  Natural Science Foundation of Shandong Province

  Award: ZR2022ME179
• AR
  Australian Research Council

  Award: DP240102787