Journal of Materials Science

, Volume 53, Issue 3, pp 1862–1873 | Cite as

Efficient solvothermal synthesis of highly porous UiO-66 nanocrystals in dimethylformamide-free media

  • Luis A. Lozano
  • Clara M. Iglesias
  • Betina M.C. Faroldi
  • María A. Ulla
  • Juan M. ZamaroEmail author
Chemical routes to materials


The UiO-66 metal–organic framework has remarkable physicochemical characteristics which have positioned it as one of the Zr-MOFs with greater potential for application in diverse processes. However, it remains a challenge how to optimize the synthesis methods so as to obtain this material with high yield and good porous properties under more eco-compatible conditions. In this work, we report the solvothermal synthesis of UiO-66 nanocrystals with high surface area using acetone as the synthesis medium, replacing the traditional and toxic N,N-dimethylformamide. The effects of solvents, reactant concentration, temperature, synthesis time and mixture protocol on the material properties were characterized by XRD, SEM–EDS, FTIR, TGA-SDTA and N 2 adsorption isotherms. The sample obtained in pure acetone employing the optimized protocol exhibited spherical nanoparticles 150 nm in size and presented the greatest relative crystallinity. The alternative protocol allowed obtaining UiO-66 with high yields (~ 91%) without employing DMF, under mild conditions (80 °C), in the form of nanocrystals with high specific surface area (1299 m2 g−1) that can be activated by simple drying at 130 °C and atmospheric pressure. The MOF obtained in acetone under optimum conditions showed reversible CO2 uptake capacity at room temperature and low pressures as determined by both CO2 isotherms and TGA-CO2 tests.



The authors thank to Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) from Argentina and also to Prof. José Fernandez for his kind collaboration in the SEM–EDS analyses. This study was funded by Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT) of Argentina (PICT No. 1299), and Universidad Nacional del Litoral, Argentina (CAI + D No. 0486).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

10853_2017_1658_MOESM1_ESM.doc (6.4 mb)
Supplementary information Reported properties and synthesis conditions for UiO-66 synthesized in mixtures with N,N-Dimethylformamide. XRD patterns of the solids obtained in 93% v/v acetone-DMF and 93% v/v-ethanol-DMF at different temperatures. EDS-mapping analysis of the UiO-66 crystals obtained in acetone using different Zr:BDC:acetone molar ratios (DOC 6555 kb)


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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  1. 1.Instituto de Investigaciones en Catálisis y PetroquímicaINCAPE (FIQ, UNL, CONICET)Santa FeArgentina

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