Covalent organic frameworks (COFs) as an emerging porous material have exhibited excellent application prospects in the field of photocatalysis. Nevertheless, the overall water splitting using solar energy by COF-based photocatalysts remains a huge challenge due to the rapid charge recombination and insufficient redox catalytic capacity. Herein, for the first time, the novel Fe-MOF-derived α-Fe₂O₃ and FeP-PC was designed and adopted as dual co-catalysts to facilitate the separation and utilization efficiency of charge carriers and activate the overall water splitting performance of the ketoenamine based TpPa-1-COF, with both the porous α-Fe₂O₃ and FeP-PC acting as the framework supporting to effectively prevent the agglomeration of TpPa-1-COF during the fabrication and photocatalytic process. Meanwhile, the construction of Z-scheme heterostructures and the connection of covalent bonds in the interface of α-Fe₂O₃/TpPa-1-COF/FeP-PC effectively facilitate the separation and transport of charge. Consequently, the optimal α-Fe₂O₃/TpPa-1-COF/FeP-PC excites very competitive photocatalytic overall water splitting performance.

共价有机骨架材料（COFs）作为一种新兴的多孔材料，在光催化领域展现出良好的应用前景。然而，由于快速的电荷复合和氧化还原催化能力不足，COF基光催化剂利用太阳能进行的整体水分解仍然是一个巨大的挑战。在此，首次设计并采用新型 Fe-MOF 衍生的 α-Fe ₂ O ₃和 FeP-PC 作为双助催化剂，以促进电荷载流子的分离和利用效率并激活整体水分解性能基于酮烯胺的 TpPa-1-COF 与多孔 α-Fe ₂ O ₃FeP-PC 作为支撑框架，有效防止 TpPa-1-COF 在制造和光催化过程中的团聚。同时，α-Fe ₂ O ₃ /TpPa-1-COF/FeP-PC界面中Z型异质结构的构建和共价键的连接有效地促进了电荷的分离和传输。因此，最佳的 α-Fe ₂ O ₃ /TpPa-1-COF/FeP-PC 激发了极具竞争力的光催化整体水分解性能。