Liu Heng-Zhi, Liu Xiao, Li Bo, Luo Haiqiang, Ma Jian-Gong, Cheng Peng
Key Laboratory of Advanced Energy Materials Chemistry (MOE), Haihe Laboratory of Sustainable Chemical Transformations (Tianjin), Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin 300071, China.
ACS Appl Mater Interfaces. 2022 Jun 22;14(24):28123-28132. doi: 10.1021/acsami.2c08776. Epub 2022 Jun 9.
The photocatalytic production of syngas from CO 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 CO conversion, leading to one of the highest photocatalytic syngas production rates and excellent recyclability. The H/CO of syngas ratios can be readily adjusted by controlling the ratio of Zn/Co in the hybrid MOF shell.
通过一氧化碳和水进行光催化生产合成气，对于太阳能储存和可持续发展而言，是一种具有吸引力且直接的方式。在此，我们将双金属金属有机框架（MOF）Zn/Co-沸石咪唑酯骨架（ZIF）的混合壳层与镍掺杂硫化镉纳米颗粒（Ni@CdS）的混合光活性中心相结合，通过简便的自组装过程构建了一种新型的“2 + 2”光催化体系Ni@CdS⊂Zn/Co-ZIF，该体系在可见光捕获和一氧化碳转化方面展现出双重协同效应，从而实现了最高的光催化合成气产率之一以及出色的可回收性。合成气的氢/一氧化碳比例可通过控制混合MOF壳层中Zn/Co的比例轻松调节。
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