Growth and investigation of magnetic and optical properties of Fe3O4@CuO core-shell nanostructures

Document Type : Research Paper

Authors

• Maryam Nasseripour
• Azadeh Aezami
• Ahmad Hassanpour

Department of Physics, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran

Abstract

In this study, Fe3O4@CuO core-shell nanostructures were synthesized through simple chemical methods for using in degradation process of chemical dyes application. Structural, morphological, magnetic, and optical properties of the obtained product were studied by X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM and TEM), hysteresis loop, absorbance (UV-Vis), and photoluminescence (PL) spectra. The XRD patterns revealed the formation of multi-crystalline Fe3O4 (Cubic) and CuO (Monoclinic) phases. Electron microscopy images also show formation of structures in nano-dimension with spherical- and belt-like morphologies. Magnetic studies that carried out by hysteresis loop show decreases in magnetic properties of core-shell nanostructures which can be due to weak magnetic properties of CuO. Investigating optical properties of core-shell nanostructures demonstrated the existence of absorbance edge at a visible region that is proper for solar ray absorbance and participates in photocatalytic degradation activity. Tauc plot also show decreasing in optical energy band gap of core-shell compare to the shell nanostructures.

Keywords

• Core-shell nanostructures
• Fe3O4
• CuO
• Photocatalytic degradation
• Magnetic and optical properties

20.1001.1.22285946.1397.9.34.12.8

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