Abstract
Microscopy studies were performed over a series of metal-organic-framework (MOF) imbedded electrospun fibers. Analysis of as-spun fibers revealed five different MOF particle-fiber imbedded morphologies including complete particle encasement, over-filled, surface-bound, welded, and agglomerated. To mitigate issues with fiber breakup during electrospinning (ES) due to MOF particle incorporation, secondary growth method was used. Secondary growth was performed on both Matrimid and polysulfone fibers impregnated with a MOF, ZIF-8, in either water or methanol solvents. Results show that when water was used, crystal formation was limited to formation on the top layer of the fiber mat due to hydrophobicity. When methanol was used in place of water, MOF crystal growth occurred in a patchwise manner, where crystals grow across fibers and span the entire fiber mat. From this work, it was determined that successful secondary growth of MOF imbedded electrospun fibers can be accomplished when particles are either highly exposed along the fiber surface for adequate exposure to solvent, or the solvent used promotes reactant penetration into the polymer to allow access to the seeded MOF crystals.
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References
N. Bhardwaj and S. C. Kundu, Biotechnol. Adv. 28, 325–347 (2010).
F. K. Ko and Y. Wan, Introduction to Nanofiber Materials, 1st ed. (Cambridge University Press, 2014).
J. M. Holzwarth and P. X. Ma, Biomaterials. 32, 9622–9629 (2011).
H. Zhang, J. Xia, X. Pang, M. Zhao, B. Wang, L. Yang, H. Wan, J. Wu, S. Fu, Mater. Sci. Eng., C. 73, 537–543 (2017).
E. Sapountzi, M. Brajek, C. Farre, M. Arab, J.-F. Chateaux, N. Jaffrezic-Renault, F. Lagarde, J. Electrochem. Soc. 162, B275–B281 (2015).
Z. Mao, R. Xie, D. Fu, L. Zhang, H. Xu, Y. Zhong, X. Sui, Sep. Purif. Technol. 176, 277–286 (2017).
B. Mu, F. Li, K.S. Walton, A novel metal-organic coordination polymer for selective adsorption of CO2 over CH4, Chem. Commun. (2009) 2493–2495.
B. Mu, P.M. Schoenecker, K.S. Walton, Gas Adsorption Study on Mesoporous Metal-Organic Framework UMCM-1, J. Phys. Chem. C. 114 (2010) 6464–6471.
B. Mu, Y. Huang, K.S. Walton, A metal–organic framework with coordinatively unsaturated metal centers and microporous structure, CrystEngComm. 12 (2010) 2347.
M.R. Armstrong, B. Shan, Z. Cheng, D. Wang, J. Liu, B. Mu, Adsorption and diffusion of carbon dioxide on the metal-organic framework CuBTB, Chem. Eng. Sci. 167 (2017) 10–17.
C.J. Balzer, M.R. Armstrong, B. Shan, B. Mu, Composite MOF mixture as volatile organic compound sensor – A new approach to LMOF sensors, Mater. Lett. 190 (2017) 33–36.
R. Ostermann, J. Cravillon, C. Weidmann, M, Wiebcke, and B. M. Smarsly, Chem. Commun. 47, 442–444 (2011).
Y. Xu, Y. Wen, W. Zhu, Y. Wu, C. Lin, and G. Li. Mater. Lett. 87, 20–23 (2012).
E. Lõpez-Maya, C. Montoro, L. M. Rodriguez-Albelo, S. D. Aznar Cervantes, A. A. Lozano-Perez, J. L. Cenis, E. Barea, and J. A. R. Navarro. Angew. Chemie – Int. Ed. 54, 6790–6794 (2015).
Wahiduzzaman, M. R. Khan, S. Harp, J. Neumann, Q. N. Sultana, J. Mater. Eng. Perform. 25, 1276–1283 (2016).
Y. Xu, Y. Wen, W. Zhu, Y.-N. Wu, C. Lin, G. Li, Mater. Lett. 87, 20–23 (2012).
M. R. Armstrong, K. Yuriar-Arredondo, C. Y. Liu, J. E. Stevens, A. Mayhob, B. Shan, S. Senthilnathan, C. J. Balzer, and B. Mu. Ind. Eng. Chem. Res. 54, 12386–12392 (2015)
M. R. Armstrong, B. Shan, S. V. Maringanti, W. Zheng, B. Mu. Ind. Eng. Chem. Res. 55, 9944–9951 (2016).
M. R. Armstrong, S. Senthilnathan, C. J. Balzer, B. Shan, L. Chen, and B. Mu. Ultrason. Sonochem. 34, 365–370 (2017).
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Armstrong, M.R., Shan, B. & Mu, B. Microscopy Study of Morphology of Electrospun Fiber-MOF Composites with Secondary Growth. MRS Advances 2, 2457–2463 (2017). https://doi.org/10.1557/adv.2017.413
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DOI: https://doi.org/10.1557/adv.2017.413