Research Progress in the Pd Recovery by Organic Porous Materials

Palladium (Pd), as a strategic resource, plays an irreplaceable role in the fields of industrial catalysis, electronics manufacturing, and nuclear energy. The recovery of palladium isotopes from spent fuel not only holds significant economic value, but also represents component of the safe disposal of spent fuel. So far, porous organic polymers (POPs) have shown significant promise due to their selectivity and ability to withstand harsh conditions. Covalent organic frameworks (COFs) are also a promising porous material platform with a variety of applications, including separation and sensing. This article systematically summarizes recent advancements in selective recovery of palladium based on covalent organic frameworks and porous organic polymers, with a focus on material design strategies, adsorption mechanisms, and practical application performance.