In this work, an atomic-layer Fe₂O₃-modified two-dimensional (2D) porphyrinic metal-organic framework (MOF) was prepared (2D MOF-Fe₂O₃), which exhibits unique interfacial electron-withdrawing effect via charge transfer pathways from Zn₂O₈ and C-O bonds to Fe-O bonds. Concretely, the atomic-layer Fe₂O₃ is deposited on 2D porphyrinic MOF (ZnTCPP) by atomic layer deposition technique to enhance the photocatalytic performance and the subsequent bacteria-killing efficacy. After 20 min light irradiation, the photocatalytic antibacterial efficacy of 2D MOF-Fe₂O₃ can reach up to 99.9%. The underlying mechanism of enhanced photocatalytic activity is that the heterointerface between 2D MOF and Fe₂O₃ can facilitate the transfer of lots of photogenerated electrons from 2D MOF to Fe₂O₃, where 2D MOF and Fe₂O₃ act as electronic donator and receptor, respectively. This work provides an insight into developing highly effective photocatalysts by using electron-withdrawing modulator to optimize charge transfer pathway.

在这项工作中，制备了原子层Fe ₂ O ₃修饰的二维（2D）卟啉金属有机骨架（MOF）（2D MOF-Fe ₂ O ₃），通过电荷表现出独特的界面吸电子效应。从 Zn ₂ O ₈和 CO 键到 Fe-O 键的转移途径。具体而言，通过原子层沉积技术将原子层Fe ₂ O ₃沉积在二维卟啉MOF（ZnTCPP）上，以提高光催化性能和随后的杀菌效果。光照20 min后，2D MOF-Fe ₂ O _{3的光催化抗菌效果}可达99.9%。增强光催化活性的潜在机制是二维 MOF 和 Fe ₂ O ₃之间的异质界面可以促进大量光生电子从二维 MOF 转移到 Fe ₂ O ₃，其中二维 MOF 和 Fe ₂ O ₃作为电子供体和受体，分别。这项工作为通过使用吸电子调节剂优化电荷转移途径来开发高效光催化剂提供了见解。