Clean Technology (청정기술)

The Korean Society of Clean Technology (한국청정기술학회)
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Facile and Clean Synthetic Route to Non-Layered Two-Dimensional ZIF-67 Nanosheets

  • Choi, Chang-Ho (Department of Chemical Engineering, Gyeongsang National University)
  • Received : 2020.11.06
  • Accepted : 2020.12.03
  • Published : 2020.12.31
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Abstract

Two-dimensional (2D) metal organic framework (MOF) nanosheets (NSs) have recently gained considerable interest owing to their structural advantages, such as large surface area and exposed active sites. Two different types of 2D MOF NSs have been reported, including inherently layered MOFs and non-layered ones. Although several studies on inherently layered 2D MOFs have been reported, non-layered 2D MOFs have been rarely studied. This may be because the non-layered MOFs have a strong preference to form three-dimensionality intrinsically. Furthermore, the non-layered MOFs are typically synthesized in the presence of the surfactant or modulator, and thus developing facile and clean synthetic routes is highly pursued. In this study, a facile and clean synthetic methodology to grow non-layered 2D cobalt-based zeolitic imidazolate framework (ZIF-67) NSs is suggested, without using any surfactant and modulator at room temperature. This is achieved by directly converting ultrathin α-Co(OH)2 layered hydroxide salt (LHS) NSs into non-layered 2D ZIF-67 NSs. The comprehensive characterizations were conducted to elucidate the conversion mechanism, structural information, thermal stability, and chemical composition of the non-layered 2D ZIF-67. This facile and clean approach could produce a variety of non-layered 2D MOF NS families to extend potential applications of MOF materials.

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References

  1. Furukawa, H., Cordova, K. E., O'Keeffe, M., and Yaghi, O. M., "The Chemistry and Applications of Metal-Organic Frameworks," Science, 341(6149), 1230444 (2013). https://doi.org/10.1126/science.1230444
  2. Silva, P., Vilela, S. M., Tome, J. P., and Paz, F. A. A., "Multifunctional metal-organic frameworks: from academia to industrial applications," Chem. Soc. Rev., 44, 6774-6803 (2015). https://doi.org/10.1039/c5cs00307e
  3. Sholl, D. S., and Lively, R. P., "Defects in metal-organic frameworks: challenge or opportunity?" J. phys. Chem. Lett., 6(17), 3437-3444 (2015). https://doi.org/10.1021/acs.jpclett.5b01135
  4. Foster, J. A., Henke, S., Schneemann, A., Fischer, R. A., and Cheetham, A. K., "Liquid Exfoliation of Alkyl-ether Functionalised Layered Metal-Organic Frameworks to Nanosheets," Chem. Commun., 52, 10474-10477 (2016). https://doi.org/10.1039/c6cc05154e
  5. Zhao, M., Huang, Y., Peng, Y., Huang, Z., Ma, Q., and Zhang, H., "Two-dimensional Metal-organic Framework Nanosheets: Synthesis and Applications," Chem. Soc. Rev., 47, 6267-6295 (2018). https://doi.org/10.1039/c8cs00268a
  6. Pustovarenko, A., Goesten, M. G., Sachdeva, S., Shan, M., Amghouz, Z., Belmabkhout, Y., Dikhtiarenko, A., Rodenas, T., Keskin, D., and Voets, I. K., "Nanosheets of Nonlayered Aluminum Metal-Organic Frameworks Through a Surfactant-Assisted Method", Adv. Mater., 30(26), 1707234 (2018). https://doi.org/10.1002/adma.201707234
  7. He, T., Ni, B., Zhang, S., Gong, Y., Wang, H., Gu, L., Zhuang, J., Hu, W., and Wang, X., "Ultrathin 2D zirconium metal-organic Framework Nanosheets: Preparation and Application in Photocatalysis," Small, 14(16), 1703929 (2018). https://doi.org/10.1002/smll.201703929
  8. Huang, L., Zhang, X., Han, Y., Wang, Q., Fang, Y., and Dong, S., "In Situ Synthesis of Ultrathin Metal-Organic Framework Nanosheets: a New Method for 2D Metal-Based Nanoporous Carbon Electrocatalysts," J. Mater. Chem. A, 5, 18610-18617 (2017). https://doi.org/10.1039/C7TA05821G
  9. Liu, Z., Ma, R., Osada, M., Takada, K., and Sasaki, T., "Selective and Controlled Synthesis of α-and β-cobalt Hydroxides in Highly Developed Hexagonal Platelets," J. Am. Chem. Soc. 127(40), 13869-13874 (2005).
  10. Zhong, G., Liu, D., and Zhang, J., "The Application of ZIF-67 and its Derivatives: Adsorption, Separation, Electrochemistry and Catalysts," J. Mater. Chem. A, 6, 1887-1899 (2018). https://doi.org/10.1039/C7TA08268A
  11. Majano, G., and Perez-Ramirez, J., "Scalable Room-Temperature Conversion of Copper (II) Hydroxide into HKUST‐1 (Cu3 (btc) 2)," Adv. Mater., 25(7), 1052-1057 (2013). https://doi.org/10.1002/adma.201203664
  12. Xu, Z., and Zeng, H., "Interconversion of Brucite-like and Hydrotalcite-like Phases in Cobalt Hydroxide Compounds," Chem. Mater., 11(1), 67-74 (1999). https://doi.org/10.1021/cm980420b
  13. Yu, D., Ge, L., Wu, B., Wu, L., Wang, H., and Xu, T., "Precisely Tailoring Zif-67 Nanostructures from Cobalt Carbonate Hydroxide Nanowire Arrays: Toward High-Performance Battery-Type Electrodes," J. Mater. Chem. A, 3, 16688-16694 (2015). https://doi.org/10.1039/C5TA04509F
  14. Shoaee, M., Anderson, M. W., and Attfield, M. P., "Crystal Growth of the Nanoporous Metal-Organic Framework HKUST-1 Revealed by In Situ Atomic Force Microscopy," Angew. Chem. Inter. Ed., 47(44), 8525-8528 (2008). https://doi.org/10.1002/anie.200803460
  15. Khan, A., Ali, M., Ilyas, A., Naik, P., Vankelecom, I. F., Gilani, M. A., Bilad, M. R., Sajjad, Z., and Khan, A. L., "ZIF-67 filled PDMS mixed matrix membranes for recovery of ethanol via pervaporation," Sep. Purif. Technol., 206(29), 50-58 (2018). https://doi.org/10.1016/j.seppur.2018.05.055