Polarity-dependent particle size of zeolitic imidazolate framework synthesized in various solvents

Enhanced removal performance and evaluative interaction mechanism of europium from an aqueous medium by microbial yeast-decorated zeolitic imidazolate framework hybrids

“…The diffraction peaks at 2y = 7.41, 10.31, 12.81, 14.81, 16.51, 18.11, 24.51and 26.71 were respectively assigned to the especial planes (011), ( 002), ( 112), ( 022), ( 013), ( 222), ( 233) and (134) of the ZIF-8 lattice, which was basically consistent with the literature. 22 Therefore, the synthesized ZIF-8 nanoparticles had high crystal structure and purity. It could be seen from Fig.…”

Nucleation of zeolitic imidazolate frameworks: from molecules to nanoparticles

“…This is in line with other studies in literature, which have shown that the solvent has a large influence in the morphology of the crystallised MOFs. 65,66 It seems timely to point out that the implicit solvent does not alter the geometry of the ZnIm n X m complexes appreciably with respect to that in vacuo : the Root-Mean-Square Deviations (RMSDs) between the superimposed atomic coordinates of the optimized clusters determined with both methods are negligible ( e.g. , <0.01 Å in bond distances).…”

“…This is in line with other studies in literature, which have shown that the solvent has a large influence in the morphology of the crystallised MOFs. 65,66 It seems timely to point out that the implicit solvent does not alter the geometry of the ZnIm n X m complexes appreciably with respect to that in vacuo: the Root-Mean-Square Deviations (RMSDs) between the superimposed atomic coordinates of the optimized clusters determined with both methods are negligible (e.g., <0.01 Å in bond distances). Changes in the energetics of these small clusters should therefore not be attributed to the inclusion of the implicit solvent, but rather to the unbalance of negative charge in the clusters and to the shielding of the long-range repulsion between the anionic ligands, which changes the energetics but does not affect the geometries, for small clusters.…”

Synthesis of Zeolitic Imidazolate Framework-8 Using Glycerol Carbonate

“…When water is used as a solvent, the synthesis should be carried out in an alkaline environment usually by applying an excess of organic linkers. − Rapid synthesis methods (<1 h) at room temperature are also presented in the literature, however, in this case, the size of the formed crystals is less than 100 nm . In fact, DMF is a toxic, fossil-based, polar, and aprotic solvent characterized by a high dielectric constant and a high boiling point, features that favor the progress of the synthetic process but may pose concerns on the environmental impacts.…”