Herein, we report on a new Cu-based MOF material, Cu(2)(dhtp), structurally homologous to the honeycomb-like M(2)(dhtp) series. This has been crystallized under solvothermal conditions using copper nitrate and 2,5-dihydroxyterephthalic acid as an organic linker, being the nature of the co-solvent in the synthesis media an important variable over the final physical properties of the material. The presence of isopropanol as a co-solvent leads to the formation of a pure crystalline phase with textural properties comparable to M(2)(dhtp) homologues. The interesting results in CO(2) adsorption properties of this new material, especially its isosteric heat of adsorption, make it a suitable MOF to be further evaluated under real conditions of industrial CO(2) capture.

Electronic structure calculations and simulations of H 2 sorption were performed in four members of the M-MOF-74 series: Mg-MOF-74, Ni-MOF-74, Co-MOF-74, and Zn-MOF-74. Notable differences were observed in the partial charge and polarizability of the metal ions derived from the electronic structure calculations. The modeling parameters obtained from the electronic structure calculations were found to influence certain features in the experimentally observed H 2 sorption trends in the M-MOF-74 series. The simulations were performed with the inclusion of explicit many-body polarization, which was required to reproduce the experimental H 2 sorption observables (i.e., sorption isotherms and isosteric heats of adsorption (Q st )) and the H 2 −metal interaction in all four MOFs using classical molecular simulation. Consistent with experimental measurements, the simulations captured the following trend for the H 2 −metal interaction strength: Ni-MOF-74 > Co-MOF-74 > Mg-MOF-74 > Zn-MOF-74. The calculations revealed that stronger H 2 −metal interactions within the M-MOF-74 series corresponded to shorter H 2 −metal distances and higher induced dipoles on the metal-sorbed H 2 molecules. In addition, it was observed that there was a strong correlation between the H 2 −metal interaction and the polarization contribution. Although Mg-MOF-74 has the highest calculated partial charge for the metal ion within the series, the Mg 2+ ion has a very low polarizability compared to the other M 2+ ions; this explains why the H 2 −metal interaction in this MOF is weaker compared to those for Ni-MOF-74 and Co-MOF-74. The sterics interactions, reflected in the crystal structure for all four MOFs, also played a role for the observed H 2 sorption trends. Zn-MOF-74 has the lowest H 2 uptakes and Q st within the series due to an unfavorable geometric environment for the Zn 2+ ions within the ZnO 5 clusters. Lastly, the two-dimensional quantum rotational levels were calculated for the H 2 −metal interaction in all four MOFs using the potential energy function employed herein and the calculated transitions were in good agreement with the corresponding peaks that were observed in the experimental inelastic neutron scattering (INS) spectra for the respective MOFs. This observation serves both to provide atomistic resolution to the spectroscopic experiments and to validate the molecular force field.

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Three MOFs based on alkaline-earth metals and aromatic carboxylate linkers show blue fluorescence that turns into green long-lasting phosphorescence.

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Fouling is one of the main disadvantages of membrane processes. Fouling can be mitigated by incorporating inorganic particles into the membrane. Composite membranes containing the inorganic fillers show higher pore size, porosity, and hydrophilic character than the neat PES membrane, which contributes to a better permeability. In this research, PES ultrafiltration membranes are prepared using both commercial and synthesized metal‐organic framework materials (MOF) as well as ZnO particles as fillers. Among the different fillers used, MOF particles produce a better effect on the permeability of the membrane than ZnO particles. The synthesized Zn/Co‐MOF‐74‐type materials have good structural stability in the polymeric matrix and the MOF‐PES membrane maintains its performance after a series of cycles of BSA water solution. Tested MOF‐PES membrane also shows higher BSA rejections and permeate flux than the neat PES membrane, demonstrating that it is possible to enhance the flux without losing the selectivity of the membrane. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41633.