Metal-organic frameworks as photocatalysts for the conversion of light energy into chemical energy applied to organic conversion is an efficient and sustainable strategy. Lanthanide organometallic frameworks perform poorly in photocatalytic organic reactions owing to their high electron and hole complexation rates. Inspired by the synergistic effect of biomacromolecule porphyrin as a photosensitizer with bimetallic pairs that can boost electron transport efficiency. We synthesized a series of lanthanide porphyrin mechanism MOFs (Nd PMOFs, Co–Nd PMOFs, Ni–Nd PMOFs). These PMOFs are endowed with a novel three-dimensional structure. It is noteworthy that Ni in the middle of the porphyrin ring enhances the photocatalytic performance of Ni–Nd PMOFs. The reasons can be attributed to the introduced Ni and the coordinated Nd elements, which interact synergistically with the porphyrin skeleton. This interaction results in a good photoresponse and promotes an efficient separation of photogenerated electrons and holes. The photocatalytic performance of Ni–Nd PMOFs was tested under mild conditions (12 W visible light, air) using the photocatalytic oxidation of benzyl alcohol and the oxidative coupling of benzylamine as model reactions. The conversion rate for benzyl alcohol was 90 % with a selectivity 94 %, and the conversion rate for benzylamine was 85 % with a selectivity 83 %. The photocatalytic oxidation performance of Ni–Nd PMOFs has been found to be excellent for a wide range of reactions and substrates, indicating that it is a promising photocatalyst. To some extent, the presentation of this work expands the possibilities of lanthanide metal frameworks for photocatalytic organic transformations and sheds new light on the multidirectional applications of lanthanide metal–organic frameworks.

中文翻译：

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双金属协同显着增强镧系卟啉基MOFs的光催化性能：在空气中温和条件下高效光催化氧化苯甲醇和苯甲胺

金属有机框架作为光催化剂将光能转化为化学能应用于有机转化是一种高效且可持续的策略。镧系有机金属骨架由于其高电子和空穴络合速率而在光催化有机反应中表现不佳。受到生物大分子卟啉作为光敏剂与双金属对的协同效应的启发，可以提高电子传输效率。我们合成了一系列镧系卟啉机制MOF（Nd PMOF、Co-Nd PMOF、Ni-Nd PMOF）。这些 PMOF 具有新颖的三维结构。值得注意的是，卟啉环中间的 Ni 增强了 Ni-Nd PMOF 的光催化性能。其原因可归因于引入的Ni和配位的Nd元素，它们与卟啉骨架协同相互作用。这种相互作用产生良好的光响应并促进光生电子和空穴的有效分离。使用苯甲醇的光催化氧化和苯甲胺的氧化偶联作为模型反应，在温和条件（12 W可见光、空气）下测试了 Ni-Nd PMOF 的光催化性能。苯甲醇的转化率为90％，选择性为94％，苯甲胺的转化率为85％，选择性为83％。人们发现 Ni-Nd PMOFs 的光催化氧化性能对于多种反应和底物都具有优异的性能，表明它是一种有前途的光催化剂。在某种程度上，这项工作的展示拓展了稀土金属骨架在光催化有机转化中的可能性，并为稀土金属有机骨架的多向应用提供了新的思路。