Abstract
Nanocapsule of [Cu2(bda)2(bpy)2]·4H2O (1) with nanoparticle morphology (bda2− = 2,2ʹ-biphenyl dicarboxylate and bpy = 2,2ʹ-bipyridine), was synthesized by sonochemical process. Guest water molecules can be removed from the nanopores of 1 by thermal treatment at 200 °C. The color of this compound changed from blue to deep green during this process. This process is reversible and compound [Cu2(bda)2(bpy)2] (2) with the pore size of 4.3 × 5.5 Å can absorb water again. Thus nanoparticles of compound 2 with 1.53% weight absorption of water/compound 2 at room temperature could be used as water adsorption material like silica gel. Adsorption and desorption of water in these copper(II) metal–organic nanocapsules were studied by IR spectroscopy, thermo gravimetric analyses (TGA), X-ray powder diffraction (XRD) and scanning electron microscopy (SEM).
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The authors would like to acknowledge the financial support of University of Tehran for this research under Grant number 01/1/389845.
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Mirzadeh, E., Akhbari, K. Reversible adsorption and desorption of water in nanoporous copper(II) metal–organic nanocapsules. J Porous Mater 24, 1209–1214 (2017). https://doi.org/10.1007/s10934-017-0360-y
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DOI: https://doi.org/10.1007/s10934-017-0360-y