Reversible modulation of interlayer stacking in 2D copper-organic frameworks for tailoring porosity and photocatalytic activity

Pei-Ye You, Kai-Ming Mo, Yu-Mei Wang, Qiang Gao, Xiao-Chun Lin, Jia-Tong Lin, Mo Xie, Rong-Jia Wei, Guo-Hong Ning () and Dan Li ()
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Pei-Ye You: Jinan University
Kai-Ming Mo: Jinan University
Yu-Mei Wang: Jinan University
Qiang Gao: Shanghai Advanced Research Institute, Chinese Academy of Sciences
Xiao-Chun Lin: Jinan University
Jia-Tong Lin: Jinan University
Mo Xie: Jinan University
Rong-Jia Wei: Jinan University
Guo-Hong Ning: Jinan University
Dan Li: Jinan University

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract The properties of two-dimensional covalent organic frameworks (2D COFs), including porosity, catalytic activity as well as electronic and optical properties, are greatly affected by their interlayer stacking structures. However, the precise control of their interlayer stacking mode, especially in a reversible fashion, is a long-standing and challenging pursuit. Herein, we prepare three 2D copper-organic frameworks, namely JNM-n (n = 7, 8, and 9). Interestingly, the reversible interlayer sliding between eclipsed AA stacking (i.e., JNM-7-AA and JNM-8-AA) and staggered ABC stacking (i.e., JNM-7-ABC and JNM-8-ABC) can be achieved through environmental stimulation, which endows reversible encapsulation and release of lipase. Importantly, JNM-7-AA and JNM-8-AA exhibit a broader light absorption range, higher charge-separation efficiency, and higher photocatalytic activity for sensitizing O2 to 1O2 and O2•− than their ABC stacking isostructures. Consequently, JNM-8-AA deliver significantly enhanced photocatalytic activities for oxidative cross-coupling reactions compared to JNM-8-ABC and other reported homogeneous and heterogeneous catalysts.

Date: 2024
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DOI: 10.1038/s41467-023-44552-w

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