Journal of Porous Materials

, Volume 24, Issue 5, pp 1209–1214 | Cite as

Reversible adsorption and desorption of water in nanoporous copper(II) metal–organic nanocapsules

  • Elham Mirzadeh
  • Kamran AkhbariEmail author


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).


Nanocapsule Nanoparticles Adsorption Desorption Sonochemical Nanopore 



The authors would like to acknowledge the financial support of University of Tehran for this research under Grant number 01/1/389845.

Supplementary material

10934_2017_360_MOESM1_ESM.doc (2 mb)
Supplementary material 1 (DOC 2002 KB)


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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.School of Chemistry, College of ScienceUniversity of TehranTehranIslamic Republic of Iran

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