Metal-organic frameworks as photocatalysts in energetic and environmental applications

Abstract

Metal-organic frameworks (MOFs) are an exciting new class of porous materials with great potential for photocatalytic applications in the environmental and energy sectors. MOFs provide significant advantages over more traditional materials when used as photocatalysts due to their high surface area, adaptable topologies, and functional ability. In this article, we summarize current developments in the use of MOFs as photocatalysts for a variety of applications, such as CO 2 reduction, water splitting, pollutant degradation, and hydrogen production. We discuss the fundamental properties of MOFs that make them ideal for photocatalytic applications, as well as strategies for improving their performance. The opportunities and challenges presented by this rapidly expanding field are also highlighted.

Engineering Coordination Frameworks by Cyclotriphosphazene-Functionalized Tectonics and a Terpyridine-Pincer Ligand for Efficient Photocatalytic Degradation of Organic Dyes

“…Aromatic polycarboxylic-based ligands have been extensively used as building blocks for featuring multiple bonding sites that allow for the creation of stable CPs. , Employing carboxylic acid and nitrogen-donor ligands that are structurally straightforward, facilitates the formation of highly stable and efficient materials . The crystal engineering society has shown significant interest in cyclotriphosphazenes due to the discovery of the exceptional inclusion properties of tris­( o -phenylenedioxy)­cyclotriphosphazene (TPP), and since then, cyclotriphosphazene cores are favorable structural conformation due to their robustness and rigidity, thereby enhancing the stability of CPs for various advanced applications in energy and environmental fields. − Cyclotriphosphazene-based linkers are excellent molecular building blocks for binding metal ions, thus forming stable CPs, , which is a key factor for the reuse of a photocatalyst. Particularly, cyclotriphosphazene-functionalized hexacarboxylates are noted for their effectiveness in applications such as gas adsorption and separation , luminescence, ,, energy storage as supercapacitor electrodes, ratiometric fluorescence detection, solvochromic behavior, and catalytic activity …”