Synthesis of amine-tagged metal–organic frameworks isostructural to MIL-101(Cr)

Abstract

Materials that are isostructural to MIL-101(Cr) were obtained from partial replacement of terephthalic acid to 2-aminoterephthalic acid, a linker containing amine functionalities in the synthesis media. The produced materials were characterized by different techniques, confirming the formation of the structure, their porosity and its functionalization. These results support that our simplified method to insert controllable amounts of amine functionalities on MIL-101(Cr) surface was employed successfully to produce materials that can present different surface character and reactivity.

Enhanced performance of a metal-organic framework analogue to MIL-101(Cr) containing amine groups for ibuprofen and nimesulide controlled release

“…S3) it was observed that surface area and pore volume values decreased for 10% NH 2 -MIL-101(Cr), suggesting that functionalization reduces the surface area by 57% and pore volume by 60% (Table 1). These values are lower than those reported by Férey et al [18] for MIL-101(Cr) (5900 m 2 g −1 ) and by Ferreira et al [22] for 10% NH 2 -MIL-101(Cr) (2680 m 2 g − 1 ), which can be due to the presence of unreacted terephthalic and/or 2-aminoterephthalic acid.…”

Synthesis, characterization, and CO2 adsorption properties of metal organic framework Fe-BDC

“…31 Although MOFs constructed from Cr and Al as metal center and BDC ligand have been considered and investigated in many studies, less attention has been paid to MILs synthesized using Ferrite precursors and BDC ligand, especially in terms of CO 2 adsorption. [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] It is known that the metal type will have a signicant effect on the electric eld intensity and consequently, CO 2 adsorption. Similar to Cr 3+ and Al 3+ which are effective on resistance of MOF against water, Fe 3+ as a highvalence metal cation is expected to give the same result when it is applied as the metal center in the MOF structure.…”

Fine-Tuning Dye Adsorption Capacity of UiO-66 by Mixed-Ligand Approach

“…These observations are in an agreement with previous study, which reported the decreasing trend of MOFs thermal stability with the rising number of ATA ligand. 24 In addition, results from TGA analysis also enable an estimation of missing organic linker numbers by comparing the weight loss percentage occurring during the last region. As labelled on Fig.…”

“…al. 24 The calculated results are tabulated in Table 1, whereas our detailed calculation can be found in the supporting information. It has been observed from the table that the higher the amount of ATA ligands, the higher the amount of nitrogen mass percentage.…”

“…Molar fraction and mass amount of organic linkers used in each sample, mass percentage of carbon (%C) and nitrogen (%N) obtained from CHON/S elemental analysis and calculated experimental molar proportion of the functionalized linker (% func )24,27 …”