Recent advances in cobalt-based bimetallic metal-organic framework-derived nanozymes for environmental protect

Abstract

The escalating release of hazardous organic pollutants, including synthetic dyes, agricultural pesticides, and pharmaceutical antibiotics, has posed severe threats to both environmental ecosystems and public health. Thus, there is an urgent need for advanced detection methodologies and remediation technologies to effectively monitor and degradate these environmental contaminants. In this regard, the bimetallic MOF (BMOF)-nanozymes have investigated as a promising branch of nanozymes, because the strategic incorporation of mixed metals enhances catalytic functionality by simultaneously increasing active site density while improving structural integrity and catalytic efficiency through synergistic electronic interactions. Among them, cobalt (Co)-based MOFs exhibit excellent redox activity owing to their accessible Co centers, facilitating efficient electron transfer through multiple oxidation states (Co+ to Co4+) during catalytic conversions. Herein, the fabrication of Co-based BMOFs-derived nanozymes and their applications in environmental field, including contaminants detection and degradation were discussed. Further, the intricate interplay between the physicochemical properties and catalytic performance of Co-based BMOFs-derived nanozymes were systematically examined. Moreover, the new challenges and future research prospects are highlighted to help gain advancement in the environmental field based on Co-based BMOFs-derived nanozymes.

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