Abstract

In this study, a core–shell magnetic metal organic framework (MOF) catalyst was introduced based on Fe3O4 magnetic nanoparticles (MNPs) and copper organic frameworks. In this catalyst, Fe3O4 MNPs have been coated with MOFs in which copper was the inorganic nodes and 1,3,5-benzenetricarboxylic acid was the organic linkers. Then, the core–shell structures and catalytic efficiency have been confirmed properly and completely with various analyses such as FT-IR, TEM, SEM, TEM mapping, SEM mapping, EDX, PXRD, TGA, ICP and VSM. The Cu moieties in MOF and shell structures can catalyze the synthesis of 1,2,3-triazole derivatives with good to excellent yields in the presence of water as a green solvent. Moreover, this catalyst showed the high reusability due to the super paramagnetic properties.

Highlights

  • In this study, a core–shell magnetic metal organic framework (MOF) catalyst was introduced based on ­Fe3O4 magnetic nanoparticles (MNPs) and copper organic frameworks

  • Initially the F­ e3O4 MNPs have been prepared in the nano dimensions and they have been coated with MOFs with Cu as inorganic nodes and 1,3,5-benzenetricarboxylic acid as organic linkers ­([Cu3(btc)2] btc = benzene-1,3,5-tricarboxylic

  • A magnetic metal organic framework with core–shell structure based on HKUST-1 MOF has been developed as an efficient and recyclable catalyst (Fig. 1)

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Summary

Introduction

A core–shell magnetic metal organic framework (MOF) catalyst was introduced based on ­Fe3O4 magnetic nanoparticles (MNPs) and copper organic frameworks. SEM and TEM techniques are the important analysis for evaluation of core–shell structures and investigation of morphology and size of NPs. Thereby, SEM and TEM images of bare ­Fe3O4 and core–shell ­Fe3O4@HKUST-1 MNPs (Final catalyst) have been provided (Fig. 4).

Results
Conclusion
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