Facile synthesis of Fe₃O₄nanoparticles on metal organic framework MIL-101(Cr): characterization and catalytic activity

Abstract

Fe3O4nanoparticles can be effectively incorporated into the matrix of MIL-101(Cr) to fabricate a Fe3O4@MIL-101 magnetic nanocomposite which behaves as a magnetic nanocatalyst for the solvent free oxidation of benzyl alcohol.

A magnetically-separable H 3 PW 12 O 40 @Fe 3 O 4 /EN-MIL-101 catalyst for the one-pot solventless synthesis of 2H-indazolo[2,1- b ] phthalazine-triones

“…Note that the overall crystallinity decreased following PTA incorporation into the magnetic composite, presumably due to structural distortions arising from accommodating the bulky anion within the small mesopores and/or microporous windows. Note that MIL-101(Cr) possesses 1.6 nm hexagonal windows [50] and hence is certainly able to accommodate individual Keggin units of PTA (diameter ~1.2 nm), and that Fe3O4 nanoparticles have also previously been accommodated in MIL-101(Cr) following the same synthetic route adopted in our work [47]. As expected, FESEM images of MIL-101 (Fig.…”

“…Fe3O4/EN-MIL-101 was prepared adapting a literature synthesis of Fe3O4/MIL-101 [47]. 0.40 g (2 mmol) of FeCl2.4H2O and 0.65 g (4 mmol) FeCl3 were added to an aqueous suspension (200 mL) of 1.0 g EN-MIL-101.…”

Synthesis of a new magnetic metal–organic framework nanocomposite and its application in methylene blue removal from aqueous solution

“…As can be seen, the surface of MIL‐101 has been successfully decorated with Fe 3 O 4 @SiO 2 –NH 2 nanoparticles without any influence on the size and the morphology of MIL‐101. Fe 3 O 4 @SiO 2 –NH 2 MNPs are also connected to the MIL‐101(Cr) surface without fragmentation of the characteristic cubic symmetry of MIL‐101(Cr), and the crystal size was reported to be around 45–77 nm.…”

Application of metal and metal oxide nanoparticles@MOFs

“…For example, metal and metal oxide nanoparticles can be prepared by infiltrating the precursors in the pre-formed porous MOF crystals, either via the vapour or liquid phase [1,15]. Particle formation is subsequently triggered within the MOF by the application of heat [16,17], reducing agents [18,19] or radiation [20,21] (Fig. 1a).…”