The photocatalytic production of syngas from CO₂ and water is an attractive and straightforward way for both solar energy storage and sustainable development. Here, we combined the hybrid shell of a bimetallic metal–organic framework (MOF) Zn/Co-zeolitic imidazolate framework (ZIF) and the hybrid photoactive center of Ni-doped CdS nanoparticles (Ni@CdS) to construct a new “2 + 2” photocatalysis system Ni@CdS⊂Zn/Co-ZIF through a facile self-assembly process, which exhibited a double-synergic effect for visible light harvesting and CO₂ conversion, leading to one of the highest photocatalytic syngas production rates and excellent recyclability. The H₂/CO of syngas ratios can be readily adjusted by controlling the ratio of Zn/Co in the hybrid MOF shell.

中文翻译：

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混合金属-有机框架封装混合 Ni 掺杂 CdS 纳米颗粒用于可见光驱动的 CO2 还原

由CO ₂和水光催化生产合成气是太阳能储存和可持续发展的一种有吸引力且直接的方法。在这里，我们将双金属金属有机骨架 (MOF) Zn/Co-沸石咪唑酯骨架 (ZIF) 的杂化壳与 Ni 掺杂的 CdS 纳米粒子 (Ni@CdS) 的杂化光活性中心相结合，构建了一种新的“2 + 2”光催化系统Ni@CdS⊂Zn/Co-ZIF通过简单的自组装过程，在可见光收集和CO ₂转化方面表现出双重协同效应，是光催化合成气产率最高和可回收性优异的产品之一. 通过控制混合 MOF 壳中 Zn/Co 的比例，可以很容易地调节合成气的 H _{2 /CO 比例。}