A method for degrading bisphenol a in water by activating persulfate with a pda@femn-mof catalyst
By forming a core-shell structure of PDA@FeMn-MOF catalyst with a self-polymerized polydopamine coating layer on the FeMn-MOF surface, the problems of few active sites and poor structural stability of existing MOF catalysts when activating persulfate are solved, and efficient degradation of bisphenol A in water is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUNAN UNIV
- Filing Date
- 2026-03-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing MOF catalysts suffer from a lack of catalytic active sites, poor structural stability, and low mass transfer efficiency when activating persulfate, making it difficult to efficiently degrade bisphenol A in water and potentially causing metal leaching and secondary pollution.
The PDA@FeMn-MOF catalyst was used. This catalyst has a core-shell structure formed by the self-polymerization of polydopamine on the surface of the bimetallic iron-manganese metal-organic framework, which increases the active sites and forms an irregular closed cavity. The mass ratio of dopamine to FeMn-MOF and the polymerization reaction time were optimized to promote the formation of the yolk shell structure.
It achieves efficient and rapid degradation of bisphenol A. The catalyst completely degrades bisphenol A within 15 minutes. It has the advantages of simple process, high oxidant utilization rate, fast degradation efficiency, good structural stability, high mass transfer efficiency, and avoids metal leaching.
Smart Images
Figure CN122403607A_ABST