Enhanced Magneto-optical and Photocatalytic Properties of Ferromagnetic Mg{sub 1−y}Ni{sub y}Fe{sub 2}O{sub 4} (0.0 ≤ y ≤ 1.0) Spinel Nano-ferrites
- Bharathiar University, Research and Development Center (India)
- Bharath University, Department of Physics, Bharath Institute of Higher Education and Research (India)
- Rajah Serfoji Government College, PG and Research Department of Chemistry (India)
- Ton Duc Thang University, Department for Management of Science and Technology Development (Viet Nam)
- Imam Abdulrahman Bin Faisal University, Department of Nano-Medicine Research, Institute for Research and Medical Consultations (Saudi Arabia)
- Presidency College (Autonomous), PG and Research Department of Chemistry (India)
Spinel Mg{sub 1−y}Ni{sub y}Fe{sub 2}O{sub 4} (0.0 ≤ y ≤ 1.0) ferrite magnetic nanoparticles (MNPs) were synthesized by a sol-gel combustion method using urea as the reducing agent/fuel. Powder X-ray diffraction (XRD) analysis revealed the formation of cubic spinel Mg{sub 1−y}Ni{sub y}Fe{sub 2}O{sub 4} powders and confirmed pure crystalline phase and the average crystalline size of 21.25 to 17.04 nm. Functional group bonds between metal and oxygen (M–O) were confirmed by Fourier transform infrared (FT-IR) spectra. The microstructure of the powders was recorded by high-resolution scanning electron microscope (HR-SEM) and confirmed the particle-like surface morphology with smaller agglomeration, due to the magnetic interaction of the particles. Energy-dispersive X-ray (EDX) results showed the composition of the expected elements and confirmed the phase purity of the products. Vibrating sample magnetometer (VSM) technique recorded at room temperature was used to analyse the magnetic properties of the samples and the hysteresis loops showed the ferromagnetic behaviour. Moreover, the samples Mg{sub 1−y}Ni{sub y}Fe{sub 2}O{sub 4} NPs were tested for the photocatalytic degradation (PCD) of methylene blue (MB) dye and the sample y = 0.6 showed maximum degradation efficiency (96.83 %), due to the smaller particle size with higher surface area than other compositions. Furthermore, spinel Mg{sub 1−y}Ni{sub y}Fe{sub 2}O{sub 4} nano-photocatalysts can be reused several times without change of its catalytic activity.
- OSTI ID:
- 22773654
- Journal Information:
- Journal of Superconductivity and Novel Magnetism, Vol. 31, Issue 11; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 1557-1939
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AGGLOMERATION
FERRITES
FOURIER TRANSFORM SPECTROMETERS
HYSTERESIS
MAGNETIC PROPERTIES
METHYLENE BLUE
MICROSTRUCTURE
MORPHOLOGY
NANOPARTICLES
OXYGEN
PARTICLE SIZE
PHOTOCATALYSIS
REDUCING AGENTS
SCANNING ELECTRON MICROSCOPY
SOL-GEL PROCESS
SPINELS
SURFACE AREA
TEMPERATURE RANGE 0273-0400 K
UREA
VIBRATING SAMPLE MAGNETOMETERS
X-RAY DIFFRACTION