No abstract

No abstract

11In this paper, core-shell polydopamine (PDA)-encapsulated CuFe 2 O 4 12 (CuFe 2 O 4 @PDA) magnetic nanoparticles (MNPs) were synthesized through in situ 13 self-polymerization for the first time. The size of the core-shell product can be 14 controlled by tuning the dopamine monomer concentration. The formation of PDA 15 layer effectively enhanced the catalytic performance and provided a large specific 16 surface area which offered more active sites for the effective interaction. The 17 as-synthesized CuFe 2 O 4 @PDA MNPs were characterized and their catalytic activity 18 was evaluated using the degradation of methylene blue (MB) in the presence of H 2 O 2 19 as a model reaction. The experimental results showed that MB could be degraded 20 efficiently using CuFe 2 O 4 @PDA MNPs as catalyst. Under the optimized conditions, 21 the degradation efficiency of MB was above 97%. Furthermore, a possible reaction 22 mechanism was discussed. Finally, the catalyst was used for effective degradation of 23 MB in Yellow River water sample, which indicated its potential for practical 24 applications in water pollutant removal and environmental remediation.25

No abstract