Magnetically Recyclable FeO@TMU-32 Metal-Organic Framework Photocatalyst for Tetracycline Degradation Under Visible Light.

Metal-organic frameworks (MOFs) are a new class of porous crystalline materials being used as photocatalysts for efficient pollutant removal and environmental remediation. In this study, the TMU-32 MOF was synthesized as an effective photocatalyst for the photodegradation of tetracycline (TC) with 96% efficiency in 60 min under visible light. The high photocatalytic activity of the TMU-32 MOF is mainly due to its large specific surface area, which is beneficial for promoting both the adsorption of TC and the separation of the photoinduced charges.

High capacity Hg(II) and Pb(II) removal using MOF-based nanocomposite: Cooperative effects of pore functionalization and surface-charge modulation.

Water pollution by heavy metal ions especially Hg(II) and Pb(II) is one of the most important concerns because of their harmful effects on human health and environment sustainability. Here, we developed FeO@TMU-32 metal-organic framework (MOF)-based nanocomposite by applying pore functionalization and surface-charge modulation strategies. Based on synergic effects of these strategies, FeO@TMU-32 nanocomposite shows very high capacity toward Hg(II) and Pb(II) metal ions.

Highly sensitive fluorescent metal-organic framework as a selective sensor of Mn and Cr anions (MnO/CrO/CrO) in aqueous solutions.

A luminescent Zn-MOF named TMU-41, [Zn(BDC)(L)(DMF)]·1.5DMF, (L = pyridine 4-carboxylic acid and BDC = benzene-1,4-dicarboxylate), has been successfully assembled and well characterized by single-crystal X-ray crystallography, thermogravimetric analysis (TGA), X-ray diffraction (XRD) and N adsorption-desorption isotherms, which shows good stability especially in aqueous solutions. To fabricate open metal sites (OMS) of TMU-41(OMS), the coordinated DMF molecules were exchanged and removed by using acetonitrile as exchanging solvent and drying at 250 °C.

Sonochemical synthesis and structural characterization of a new Zn(II) nanoplate metal-organic framework with removal efficiency of Sudan red and Congo red.

A 3-D Zn(II) based metal-organic framework (MOF) of [Zn(oba)(DMF)] was synthesized using the nonlinear dicarboxylate ligand, 4,4'-oxybis(benzoic acid) (Hoba) via sonochemical and solvothermal routes. IR spectroscopy, single-crystal X-ray crystallography, scanning electron microscopy, and X-ray powder diffraction were used to characterize these MOF samples. The effect of different times of irradiation and various concentrations of primary reagents were experimented for obtaining monotonous morphology.