Abstract
In this study, a zeolitic imidazolate framework-8 (ZIF-8) and its copper-doped variants (Cu-doped ZIF-8) were synthesized using a rapid microwave technique. The products were characterized by XRD, NanoSEM, FTIR, Raman spectra, TGA, XPS, and EDX. The gas adsorption properties of samples were performed using C3 and C4 hydrocarbons including propane, propylene, isobutane, and n-butane gases at 25 °C. Both equilibrium adsorption and kinetics were studied. It was found that ZIF-8 and Cu-doped ZIF-8 samples open their nanogates (i.e., six-membered rings) at some threshold pressures when adsorbing different gases, which it is denotes later as the gate-opening pressure (p0). The p0 value for each ZIF toward each gas was evaluated by fitting equilibrium adsorption data against a modified version of the Langmuir adsorption isotherm model. It was observed that the value of p0 differs significantly for each gas utilized, and with different extents for ZIF samples. The overall mass transfer coefficient values of adsorption process were estimated. Therefore, it is possible that the distinct values of p0 afford a unique chance to separate and purify these gases at mass production, and the best-studied adsorbent to for this purpose was Cu30%/ZIF-8.
References
Dhakshinamoorthy A, Asiric AM, Garcia H (2016) Doped-metal or doped-linker metal organic frameworks as heterogeneous catalysts. Catal Sci Technol 6:5238–5261
Hillman F, Brito J, Jeong H-K (2018) Rapid one-pot microwave synthesis of mixed-linker hybrid zeolitic-imidazolate framework membranes for tunable gas separations. ACS Appl Mater Interfaces 10:5586–5593
Hillman F, Zimmerman JM, Paek S-M, Hamid MRA, Limd WT, Jeong H-K (2017) Rapid microwave-assisted synthesis of hybrid zeolitic-imidazolate frameworks with mixed metals and mixed linkers. J Mater Chem A 5:6090–6099
Thompson JA, Blad CR, Brunelli NA, Lydon ME, Lively RP, Jones CW, Nair S (2012) Hybrid zeolitic imidazolate frameworks: controlling framework porosity and functionality by mixed-linker synthesis. Chem Mater 24:1930–1936
Thompson JA, Brunelli NA, Lively RP, Johnson JR, Jones CW, Nair S (2013) Tunable CO2 adsorbents by mixed-linker synthesis and postsynthetic modification of zeolitic imidazolate frameworks. J Phys Chem C 117:8198–8207
Eum K, Jayachandrababu KC, Rashidi F, Zhang K, Leisen J, Graham S, Lively RP, Chance RR, Sholl DS, Jones CW, Nair S (2015) Highly tunable molecular sieving and adsorption properties of mixed-linker zeolitic imidazolate frameworks. J Am Chem Soc 137:4191–4197
Zhang J-P, Zhu A-X, Lin R-B, Qi X-L, Chen X-M (2011) Pore surface tailored SOD-type metal-organic zeolites. Adv Mater 23:1268–1271
Kwon TH, Jeong H-K, Lee AS, An HS, Lee JS (2015) Heteroepitaxially grown zeolitic imidazolate framework membranes with unprecedented propylene/propane separation performances. J Am Chem Soc 137:12304–12311
Krokidas P, Castier M, Moncho S, Brothers E, Economou IG (2015) Molecular simulation studies of the diffusion of methane, ethane, propane, and propylene in ZIF-8. J Phys Chem C 119:27028–27037
Schoenmakers JM (2016) Post-synthesis modification of zeolitic imidazolate framework-8 (ZIF-8) via cation exchange, Master thesis. Utrecht University Repository. https://dspace.library.uu.nl/handle/1874/334148. Accessed 14 Dec 2018
Huang HC, Lin YY, Zhang JP, Chen XM (2006) Ligand-directed strategy for zeolite-type metal–organic frameworks: zinc(II) imidazolates with unusual zeolitic topologies. Angew Chem Int Ed Engl 45:1557–1559
Schejn A, Aboulaich A, Balan L, Falk V, Lalevée J, Medjahdi G, Aranda L, Mozeta K, Schneider R (2015) Cu2+-doped zeolitic imidazolate frameworks (ZIF-8): efficient and stable catalysts for cycloadditions and condensation reactions. Catal Sci Technol 5:1829–1839
Yang H, He X-W, Wang F, Kanga Y, Zhang J (2012) Doping copper into ZIF-67 for enhancing gas uptake capacity and visible-light-driven photocatalytic degradation of organic dye. J Mater Chem 22:21849–21851
Ni Z, Masel RI (2006) Rapid production of metal–organic frameworks via microwave-assisted solvothermal synthesis. J Am Chem Soc 128:12394–12395
Du D, Feng P, Cheng X, Li J, Luo X (2017) Immobilizing of ZIF-8 derived ZnO with controllable morphologies on zeolite A for efficient photocatalysis. J Solid State Chem 255:215–2018
Awadallah-F A, Al-Muhtaseb SA (2017) Selective adsorption of carbon dioxide, methane and nitrogen using resorcinol–formaldehyde-xerogel activated carbon. Adsorption 23:933–944
Awadallah-F A, Al-Muhtaseb SA (2013) Carbon dioxide sequestration and methane removal from exhaust gases using resorcinol–formaldehyde activated carbon xerogel. Adsorption 19:967–977
Qingyuan L, Sai J, Shengfu J, Muhammad A, Qingmin Z, Junlei Y (2015) Synthesis of magnetically recyclable ZIF-8@SiO2@Fe3O4 catalysts and their catalytic performance for knoevenagel reaction. J Solid State Chem 223:65–72
Samadi-Maybodi A, Ghasemi S, Ghaffari-Rad H (2015) A novel sensor based on Ag-loaded zeolitic imidazolate framework-8 nanocrystals for efficient electrocatalytic oxidation and trace level detection of hydrazine. Sens Actuators, B 220:627–633
Cravillon S, Münzer SJ, Lohmeier A, Feldhoff A, Huber K, Wiebcke M (2009) Rapid room-temperature synthesis and characterization of nanocrystals of a prototypical zeolitic imidazolate framework. Chem Mater 21:1410–1412
Fan K, Jin Z, Yuan H, Hu H, Bi Y (2017) Construction of CuO-modified zeolitic imidazolate framework-9 for photocatalytic hydrogen evolution. Chin J Catal 38:2056–2066
Hachua B, Nowak M, Kusz J (2010) Synthesis, crystal structure, spectroscopic, and magnetic properties of a manganese(II) methoxyacetate complex [Mn(C6O6H10)(H2O)]n. J Chem Crystallogr 40:201–206
Biswal N, Das DP, Martha S, Parida KM (2011) Efficient hydrogen production by composite photocatalyst CdS–ZnS/zirconium–titanium phosphate (ZTP) under visible light illumination. Int J Hydrog Energy 36:13452–13460
Acknowledgements
This publication was made possible by the NPRP Awards (NPRP 08-014-2-003 and NPRP-8-001-2-001) from the Qatar National Research Fund (a member of The Qatar Foundation). H.K.-J. acknowledges support from the National Science Foundation (CMMI-1561897). The statements made herein are solely the responsibility of the authors. Technical support from the Department of Chemical Engineering, the Central Laboratory Unit (CLU) and the Gas Processing Centre (GPC) at Qatar University is also acknowledged.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Additional information
Ahmed Awadallah-F is on leave from the Radiation Research of Polymer Department, National Centre for Radiation Research and Technology, Atomic Energy Authority, P.O. Box 29, Nasr City, Cairo, Egypt.
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Awadallah-F, A., Hillman, F., Al-Muhtaseb, S.A. et al. On the nanogate-opening pressures of copper-doped zeolitic imidazolate framework ZIF-8 for the adsorption of propane, propylene, isobutane, and n-butane. J Mater Sci 54, 5513–5527 (2019). https://doi.org/10.1007/s10853-018-03249-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-018-03249-y