Freestanding fiber mats of zeolitic imidazolate framework 7 via one-step, scalable electrospinning

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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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.

Original languageEnglish
Article number43788
JournalJournal of Applied Polymer Science
Volume133
Issue number32
DOIs
Publication statusPublished - 2016 Aug 20

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

An, S., Lee, J. S., Joshi, B. N., Jo, H. S., Titov, K., Chang, J. S., Jun, C. H., Al-Deyab, S. S., Hwang, Y. K., Tan, J. C., & Yoon, S. S. (2016). Freestanding fiber mats of zeolitic imidazolate framework 7 via one-step, scalable electrospinning. Journal of Applied Polymer Science, 133(32), [43788]. https://doi.org/10.1002/app.43788