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

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Nasseripour Maryam; aezami Azadeh; Hassanpour Ahmad

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Journal: JOURNAL OF NEW MATERIALS Year:2019 | Volume:9 | Issue:2 (34) Page(s): 155-164

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Information Journal Paper

Title

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

Author(s)

Nasseripour Maryam | aezami Azadeh | Hassanpour Ahmad | Issue Writer Certificate

Keywords

Core-shell nanostructuresQ1

Fe3O4Q2

CuOQ2

Photocatalytic degradationQ1

Magnetic and optical propertiesQ1

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.

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