Ultrathin two-dimensional (2D) metal-organic frameworks (MOFs) nanosheets have emerged as a new class of 2D materials for many applications. The research in our group is focused on a novel structure transformation with cation exchange approach to obtain 2D zeolitic imidazolate frameworks (ZIFs) layers from 3D ZIFs (such as ZIF-7, ZIF-9, ZIF-11). The as-prepared 2D ZIFs layers can also be spilt to nanosheets through ultrasonic processing. The obtained 2D layers and nanosheets were not only applied to mimic carbonic anhydrase for CO<sub>2</sub> hydrolysis but also applied to photocatalytic CO<sub>2</sub> reduction by cooperating with a ruthenium-based dye as a photosensitizer under mild reaction conditions. The catalytic efficiency of ZIF nanosheets was 20 fold increases than 2D layers structure, while all the materials still keeping its original reactivity after 5 cycles.

Ultrathin multifunctional two-dimensional metal-organic framework nanosheets for efficient CO2 catalytic

2019 Spring National Meeting

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