Functionalized iron Oxide/MOF nanocomposite exhibiting excellent performance for methylene blue adsorption

A nanocomposite obtained by integrating functionalized iron oxide magnetic nanoparticles (MAA-ZnCrFeO4) into a metal–organic framework HKUST-1 or Cu3 (BTC)2, (BTC = 1, 3, 5 benzene tri carboxylate). MAA-ZnCrFeO4/Cu3 (BTC)2 were successfully synthesized by combining the metal–organic frameworks and MAA (MAA = mercaptoacetic acid) functionalized ZnCrFeO4 microspheres with a gradual synthesis method, which composite features both magnetic characteristic and high porosity of MOF. Powder X-ray diffraction spectrometry, Fourier transform infrared spectroscopy, Thermo gravimetric analysis, and vibrating Sample Magnetometer were used for the characterization of the magnetic MOF composites. Furthermore, this composite could endow a very high potential in the adsorption of dye pollutants. The speed adsorption process (15 min), low cost, high efficiency, selectivity, and high surface area are the main advantages of the proposed compound as a sorbent.