Freestanding fiber mats of zeolitic imidazolate framework 7 via one‐step,scalable electrospinning |
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| Authors: | Seongpil An Ji Sun Lee Bhavana N Joshi Hong Seok Jo Kirill Titov Jong‐San Chang Chul‐Ho Jun Salem S Al‐Deyab Young Kyu Hwang Jin‐Chong Tan Sam S Yoon |
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| Affiliation: | 1. School of Mechanical Engineering, Korea University, Seoul, Republic of Korea;2. Research Group for Nanocatalysts, Korea Research Institute of Chemical Technology, Daejeon, Republic of Korea;3. Deparment of Chemistry, Center for Bioactive Molecular Hybrids, Yonsei University, Seoul, Republic of Korea;4. Department of Engineering Science, University of Oxford, Parks Road, Oxford, United Kingdom;5. Department of Chemistry, Sungkyunkwan University, Suwon, Republic of Korea;6. Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia |
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| Abstract: | We demonstrated the fabrication of freestanding zeolitic imidazolate framework 7 (ZIF‐7) nanofiber (NF) mats by means of one‐step, scalable electrospinning. The formation of ZIF‐7 nanoparticles embedded in polymer fibers was unambiguously pinpointed via X‐ray diffraction, transmission electron microscopy, and adsorption studies. The NF mats exhibited excellent characteristics, with an average diameter of 245 nm, in the adsorption and desorption of carbon dioxide (CO2); this makes them attractive candidates for gas separation and other selective filtration applications. This excellent property of the ZIF‐7 mats was explained by the gate‐opening phenomenon of ZIF‐7, which yielded a stepwise increase in the overall CO2 uptake capacity. The mechanical strength of the NF mats was also obtained via large‐strain uniaxial tensile deformation, which enabled preliminary assessment of the mat's suitability for textiles and membranes in targeting separation and filtration applications with large‐area permeability. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133, 43788. |
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| Keywords: | electrospinning fibers surfaces and interfaces synthesis and processing |
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