期刊
RSC ADVANCES
卷 12, 期 30, 页码 19406-19411出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ra03161b
关键词
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资金
- National Natural Science Foundation of China [22175030, 22175031, 22101042, 22075039]
- China Postdoctoral Science Foundation [2020M670773]
- Open Project of State Key Laboratory of Supramolecular Structure and Materials [sklssm202205, sklssm2022020]
The self-assembly of MOFs is crucial for the functional design of materials, but oriented self-assembly is still a challenge. This study proposes a novel strategy to drive oriented self-assembly of MOF polyhedral particles at the water-liquid interface by photoinitiated monomer polymerization. The prepared MOF polymer films show a Janus structure and can be easily transferred to various substrates.
The self-assembly of metal-organic frameworks (MOFs) is crucial for the functional design of materials, including energy storage materials, catalysts, selective separation materials and optical crystals. However, oriented self-assembly of MOFs is still a challenge. Herein, we propose a novel strategy to drive oriented self-assembly of MOF polyhedral particles at the water-liquid interface by photoinitiated monomer polymerization. The MOF polyhedral particles self-assemble into ordered close-packed structures with obvious orientation in the polymer film, and the orientation is determined by the casting solvent on the water surface. The prepared large-area MOF polymer films show a Janus structure, containing a MOF monolayer and a polymer layer, and can be easily transferred to a variety of substrates. In addition, mixed MOF particles with different sizes and morphologies can also be assembled by this method. This novel method can be foreseen to provide a powerful driving force for the development of MOF self-assembly and to create more possibilities for utilizing the anisotropic properties of MOFs.
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