Ultrathin Mesoporous Metal‐Organic Framework Nanosheets
Abstract
Abstract Designing 2D mesoporous metal‐organic framework (MOF) nanosheets to overcome the limitations of bulk MOF counterparts, with a focus on enabling smooth mass transport, presents an attractive yet challenging endeavor. Here, a novel bottom‐up interface‐directed co‐assembly method is presented for the synthesis of ultrathin 2D mesoporous UiO‐66(Ce) nanosheets. The method utilizes an interface‐directed co‐assembly of amphiphilic perfluorooctanoic acid‐induced lipid bilayers and spherical micelles from PS‐ b ‐PEO block copolymers to form unique 2D sandwich‐like assemblies that guide the creation of 2D mesoporous UiO‐66(Ce). The resultant 2D mesoporous UiO‐66(Ce), with ≈23 nm pore diameters and a thickness that can be tuned from 3 to 150 nm, represents a substantial advancement in the application of MOFs for environmental remediation. As a model reaction, the U(VI) photoreduction benefits from the through‐mesopores of its 2D morphology, which are absent in previously reported UiO‐66(Ce), as they shorten the diffusion path, thereby improving mass transport and accessibility to active sites. This report demonstrates the significant role of existing mesopores in MOFs and the shape control of MOFs.
Article Details
Authors (13)
Yingji Zhao
Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furu-cho, Chikusa-ku, Nagoya 464-8603, Japan
Zhi Gao
Division of Biological Sciences, University of Missouri
Norman C.‐R. Chen
Department of Chemical Engineering National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 106319 Taiwan
Yusuke Asakura
Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furu-cho, Chikusa-ku, Nagoya 464-8603, Japan
Ho Ngoc Nam
Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furu-cho, Chikusa-ku, Nagoya 464-8603, Japan
Quan Manh Phung
Department of Chemistry, Graduate School of Science, Nagoya University, Furu-cho, Chikusa-ku, Nagoya 464-8602, Japan
Yunqing Kang
Mandy Hei Man Leung
Department of Materials Process Engineering Graduate School of Engineering Nagoya University Nagoya 464−8603 Japan
Dong Jiang
Lei Fu
Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furu-cho, Chikusa-ku, Nagoya 464-8603, Japan
Lijin Huang
Department of Pharmacognosy, State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University
Toru Asahi
Faculty of Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
Yusuke Yamauchi