Copper-Decorated Core–Shell Structured Ordered MesoporousContaining Cobalt Ferrite Nanoparticles as High-Performance HeterogeneousCatalyst toward Synthesis of Tetrazole

The present work describes the synthesis of copper immobilization on CoFe۲O۴/MCM-۴۱ asa catalyst, which is created by attaching copper and ligand (N-phenyl anthranilic acid (PA)) on thesurface of CoFe۲O۴/MCM-۴۱ (CoFe۲O۴/MCM-۴۱/PA/Cu). The synthesized CoFe۲O۴/MCM-۴۱support and immobilized copper were identified by FTIR, TEM, VSM XRD, and nitrogenadsorption–desorption analysis. The results showed that MCM-۴۱ silica was coated with magnetitenanoparticles and copper was successfully immobilized on this structure. The catalyticperformance of synthesized catalyst was tested in the synthesis of tetrazole. It was shown that thesolid catalyst exhibited a strong magnetic response and showed good catalytic activity in thesynthesis of tetrazole. The catalytic test showed that copper supported on CoFe۲O۴/MCM-۴۱hybrid showed much better catalytic activity than copper supported on CoFe۲O۴, indicating thatMCM-۴۱ plays an important role in CoFe۲O۴/MCM-۴۱ hybrid for the synthesis of tetrazole.Separation of the solid catalyst from the reaction mixture was easily performed by externalmagnetism without apparent mass loss. And the catalyst could be reused six times for the synthesisof heterogeneous tetrazole [۱-۳].

کلیدواژه ها:

CoFe۲O۴/MCM-۴۱ ، N-phenyl anthranilic acid (PA) ، Copper ، Synthesis of tetrazole