Synthesis and Characterizationof Core-ShellFe3O4@Collagen Nanoparticle, and Application as Catalyst Ingreen Synthesis of Benzimidazoles and Benzithiazoles

Nanoparticles are nanostructures with at least one dimensionbeing less than 100 nm.In this research, nano magnetic Fe₃O₄@collagen was prepared and characterized by Fourier transforms infrared spectroscopy (FT-IR) spectra, Scanning electron microscopy (SEM) images, energy dispersive X-ray spectroscopy (EDX) spectra, X-ray diffraction (XRD) measurements.Fe₃O₄@collagen is a new and greennano catalysis and using in synthesis of benzimidazoles and benzithiazoles.This method offers several advantages including high yields, short reaction times, easy work up procedure, reusability of catalyst and environmentally benign reaction conditions.