Post-synthetic modification of MOF-808: Innovative strategies, structural and performance regulation

Abstract

Since the successful synthesis of MOF-808, its exceptional rigid framework, abundant metal sites, and hierarchical pore structure have conferred unique advantages in adsorption, catalysis, and separation applications, garnering significant research attention. Building upon this stable MOF platform, numerous post-synthetic modification derivatives have been developed through various strategies, with their application characteristics deeply investigated. This review systematically summarizes the research progress of MOF-808, categorized by three major modification strategies: functional group grafting, metal ion loading, and physico-chemical composite modification. It delves into how each strategy regulates the structural properties (e.g., pore size, specific surface area, defect engineering) and functional performance (adsorption capacity, catalytic activity, selectivity) of the parent MOF-808, detailing the breakthroughs of modified MOF-808 in gas separation, environmental remediation, energy storage, and catalytic reactions. Finally, it highlights prospective research directions to provide forward-looking insights for related studies.