题目：Lattice match-enabled Zn₃In₂S₆@CdS S-scheme heterojunction with S covalent bond bridge for simultaneous H₂O₂ photosynthesis and H₂ production

作者：Yu Che（车瑜，2022级研究生）, Ke Wang, Cong Wang*, Bo Weng, Shifu Chen, Sugang Meng *（孟苏刚）

单位：Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; Anhui Provincial Key Laboratory of Synthetic Chemistry and Applications; College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, 235000, China.

摘要：The key to realize artificial photosynthesis of hydrogen peroxide coupled with hydrogen generation lies in the construction of efficient bifunctional photocatalysts. Herein, we have successfully prepared core-shell Zn₃In₂S₆@CdS (ZIS@CdS) S-scheme heterojunction with matched interfacial lattices and S covalent bonding bridges by ion-exchange method. The combination of density functional theory calculations and experimental tests exhibits that the ZIS@CdS heterojunction interface with a lattice mismatch of ~ 5% and the presence of two S covalent bonding forms, which provides stable and efficient channels for photogenerated charge transfer. Moreover, the photogenerated charges at the ZIS@CdS heterojunction interface follow the S-scheme transfer pathway, enabling spatial charge separation and high redox potentials. Under the synergistic effect of the matched interfacial lattice, covalent bond bridges, and built-in electric field, the ZIS@CdS heterojunction achieves an impressive H₂ evolution rate of 195.9 μmol g^-1 h^-1 and H₂O₂ production rate of 92.0 μmol g^-1 h^-1 without the need of sacrificial agent and oxygen bulging, respectively. This work verifies that coupling lattice matching and covalent bonding is an effective strategy for constructing efficient bifunctional photocatalysts.  

影响因子：11.2

分区情况：一区

卷、页码：243,228-236.

链接:https://doi.org/10.1016/j.jmst.2025.04.030 

（文：孟苏刚 /   审核：韩满意 /  审校：曹静  /  终审：杨振兴）