Synthesis Characterization and Potential Applications of Transition Metal Organic Frameworks TMOFs

Abstract

An emerging class of porous materials, Metal-Organic Frameworks (MOFs) have attracted tremendous attention among the research community. MOFs have a multidimensional coordination network designed by coordinating partially filled d/f-block metal ions with organic ligands having multidenticity. Their peculiar features such as large surface area, high porosity, high thermal and mechanical strength, and customizable architecture open a door of avenues for applications in various fields viz. gas storage/separation, heterogeneous catalysis, sensing, drug delivery, and wastewater treatments. In the present work, the synthesis of MOFs were carried out by adopting the greener protocols of synthesis by selecting Fe2+(d6), Ni2+(d8), and Zn2+/Cd2+(d10) transition metallic centers coordinating with organic linkers having O, N and S donor atoms. Further, the characterizations of as-synthesized MOFs were made using various sophisticated instruments for structural elucidation (SCXRD, PXRD, FTIR, and EA), textural analysis (FESEM and BET), thermal stability (TGA), and photophysical parameters (UV-Vis and fluorometric). The emissive response of as-synthesized MOFs was studied in organic compounds with different functionalities resulting in the development of fluoroprobes having excellent recognition ability aldehydes, ketones, nitroanilines, and chlorophenols. The synthesis of MOFs based nanocomposites was carried out using three metal oxides i.e CeO2, TiO2 and ZnO and investigate their photocatalytic potential for the degradation of emerging pollutants includes synthetic dyes, chlorophenols, and NSAID drugs. The reusability studies of these nanocomposites have been performed by taking advantage of their photocatalytic properties. The fabrication of Xanthan gum and Chitosan-based grafted hydrogels was done and investigate their drug release potential choosing aspirin and ibuprofen as a target. newline