Advanced Porous Materials (APMs) as Host to Develop Composite Materials: Stability and Functional Studies

Abstract

Porosity is an important property of materials and observed in rocks, soils, biological tissues, ceramics, zeolites etc. The exquisite control over the order and functionality of porous architectures led to the design of materials for challenging applications. The study of advanced porous materials (APMs), encompassing metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), metal-organic gel (MOG), metal-organic polyhedras (MOP), and others, has progressed rapidly in the past two decades particularly in energy and environment-related applications. But among APMs, the growth of carboxylate MOP lag significantly behind to their contemporary materials due to their inherent water instability and solid-state aggregation properties. Very recently, APMs has drawn escalating interest for accommodating various unstable functional materials due to their high surface area, guest induced flexibility and specifically host-guest synergistic interactions. In this regard, the design strategies were focused on using the APMs matrix, which was specially targeted for multifunctional applications. In brief, outer surface hydrophobic shielding strategy has been utilized for stabilization of carboxylate MOP. Further, the aggregating nature of MOP has been resolved via integration in COF matrix and the resulting composite material was utilized for decontamination of water, which is a pressing global concern in the 21st century. In addition, we successfully transformed extremely unstable volatile hybrid halide perovskite to water-stable material by encapsulating into APMs matrix-like MOFs and MOG respectively. Our advanced stabilization strategies and outcomes validate the advantages of APMs in a diverse range of applications.