Exploring highly efficient bifunctional photocatalysts for simultaneous H₂ evolution and organic chemical production in pure water represents a green route for sustainable solar energy storage and conversion. Herein, a facile strategy was explored for preparing a hierarchical porous heterostructure of Fe₄Ni₅S₈@ZnIn₂S₄ (FNS@ZIS) by the in situ growth of ZIS nanosheets on Prussian blue analogue (PBA)-derived bimetallic FNS sulfides. A series of FNS@ZIS hierarchical structures were facilely prepared by adjusting the loading amount (n%) of FNS (n = 19, 26, and 32 for FNS@ZIS-1-3). These structures can efficiently drive the solar co-production of H₂ and organic chemicals. The optimal co-production was achieved with FNS@ZIS-2, affording a H₂ evolution rate of 10465 μmol·g⁻¹·h⁻¹, along with high selectivity for the oxidation of benzyl alcohol to benzaldehyde (>99.9%). The performance was 22 and 31 times higher than that of FNS and ZIS, respectively, and even superior to the state-of-the-art results achieved using various sacrificial agents. Further mechanistic study indicated that the unique hierarchical core/shell architecture can facilitate interfacial charge separation, afford bimetallic synergy, abundant active sites and excellent photostability. This work highlights a simple and efficient method for preparing porous multimetallic hierarchical structures for the solar co-production of organic chemicals and H₂ fuel.

探索用于在纯水中同时析出H ₂和有机化学物质的高效双功能光催化剂，是可持续的太阳能存储和转化的一条绿色路线。本文中，探索了一种通过在普鲁士蓝类似物（PBA）衍生的双金属FNS硫化物上原位生长ZIS纳米片来制备Fe ₄ Ni ₅ S ₈ @ZnIn ₂ S ₄（FNS @ ZIS）的分层多孔异质结构的简便策略。。一系列的FNS @ ZIS被轻便通过调节负载量（制备分层结构ñ FNS的％）（Ñ对于FNS @ ZIS-1-3 = 19、26和32）。这些结构可以有效地驱动H ₂和有机化学物质的太阳能联产。通过FNS @ ZIS-2实现了最佳的联产，H ₂的析出速率为10465μmol·g ^-1 ·h ^-1，以及对苯甲醇氧化为苯甲醛的高选择性（> 99.9％）。该性能分别比FNS和ZIS高22倍和31倍，甚至优于使用各种牺牲剂获得的最新结果。进一步的机理研究表明，独特的分层核/壳结构可以促进界面电荷分离，提供双金属协同作用，丰富的活性位点和出色的光稳定性。这项工作着重介绍了一种简单有效的方法，用于制备多孔多金属分层结构，以用于有机化学物和H ₂燃料的太阳能联产。