Design and development of novel Co‐MOF nanostructures as an excellent catalyst for alcohol oxidation and Henry reaction, with a potential antibacterial activity

Abstract

The novel metal-organic framework Co 2 (bdda) 1.5 (OAc) 1 ·5H 2 O (UoB-3) was synthesized via a simple method at room temperature. UoB-3 was characterized by the different methods, including X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), N 2 -adsorption/desorption and elemental analysis. The catalytic ability of UoB-3 was detected to be excellent for primary and secondary alcohols oxidation reaction with high yields under solvent-free conditions. Moreover, UoB-3 was highly active for Henry reaction of different aldehydes with nitromethane in water as a green solvent. The nanocatalyst can be recycled for five consecutive cycles without losing its activity and structural rigidity. The antibacterial activity of UoB-3 nanostructures towards Gram-negative bacteria, Escherichia coli and Gram-positive bacteria, Bacillus cereus was also evaluated by using an inhibition zone test. These nanostructures exhibited strong antibacterial effect against both of them. The purpose of this study was the developing metal-organic framework materials with the enhanced activity in various fields.

A Ni-MOF based luminescent sensor for selective and rapid sensing of Fe(ii) and Fe(iii) ions

“…The FT-IR spectrum data are consistent with the literature account, indicating that Ni-MOF has formed. 26,28,29 The Ni-MOF displays significant sharp peaks in its powder XRD pattern, indicating that the MOF is in its crystalline form as can be seen in Fig. 2.…”

“…The FT-IR spectrum data are consistent with the literature account, indicating that Ni-MOF has formed. 26,28,29…”

Metal-Organic Frameworks as Versatile Heterogeneous Solid Catalysts for Henry Reactions

“…A cobalt-based MOF Co 2 (bdda) 1.5 (OAc) 1 ·5H 2 O (UoB-3) (bdda: 4,4′-[benzene-1,4-diylbis(methylidenenitrilo)] dibenzoic acid) was reported as a heterogeneous solid catalyst for the Henry reaction between benzaldehyde and nitromethane ( Scheme 2 ) affording 83% yield in water at 70 °C after 24 h [ 30 ]. Furthermore, the catalytic performance was also tested between substituted aromatic aldehydes and nitromethane to obtain the respective β-nitroalkanols in 62 to 88% yields.…”

Cobalt-Based Metal Organic Frameworks as Solids Catalysts for Oxidation Reactions

“…A new Co-MOF was reported by reacting cobalt acetate with 4,4 -[benzene-1,4-diylbis (methylylidenenitrilo)] dibenzoic acid (H 2 bdda) under ultrasound irradiation in water medium [41]. The catalytic activity of this solid was tested in the oxidation of primary and secondary alcohols as well as in Henry reaction.…”