Core-Shell Nanostructure ofα-Fe2O3/Fe3O4: Synthesis and Photocatalysis for Methyl Orange

Fe3O4nanoparticle was synthesized in the solution involving water and ethanol. Then,α-Fe2O3shell was produced in situ on the surface of theFe3O4nanoparticle by surface oxidation in molten salts, formingα-Fe2O3/Fe3O4core-shell nanostructure. It was showed that the magnetic properties transformed from ferromagnetism to superparamagnetism after the primaryFe3O4nanoparticles were oxidized. Furthermore, the obtainedα-Fe2O3/Fe3O4core-shell nanoparticles were used to photocatalyse solution of methyl orange, and the results revealed thatα-Fe2O3/Fe3O4nanoparticles were more efficient than the self-preparedα-Fe2O3nanoparticles. At the same time, the photocatalyzer was recyclable by applying an appropriate magnetic field.

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Magnetic-field-induced self-assembly of FeCo/CoFe2O4 core/shell nanoparticles with tunable collective magnetic properties

Nanoscale ◽

10.1039/d1nr00136a ◽

2021 ◽

Vol 13 (8) ◽

pp. 4519-4529

Author(s):

J. Mohapatra ◽

J. Elkins ◽

M. Xing ◽

D. Guragain ◽

Sanjay R. Mishra ◽

...

Keyword(s):

Magnetic Field ◽

Magnetic Properties ◽

Physical Properties ◽

Self Assembly ◽

Core Shell ◽

Shell Nanoparticles ◽

Novel Approach ◽

Core Shell Nanoparticles

Self-assembly of nanoparticles into ordered patterns is a novel approach to build up new consolidated materials with desired collective physical properties.

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Synthesis, thermal stability, magnetic properties, and microwave absorption applications of CoNi-C core-shell nanoparticles with tunable Co/Ni molar ratio

Results in Physics ◽

10.1016/j.rinp.2021.103893 ◽

2021 ◽

Vol 22 ◽

pp. 103893

Author(s):

Lizhen Hou ◽

Xing Zhen ◽

Linlin Liu ◽

Daitao Kuang ◽

Yangyang Gao ◽

...

Keyword(s):

Thermal Stability ◽

Magnetic Properties ◽

Microwave Absorption ◽

Molar Ratio ◽

Core Shell ◽

Shell Nanoparticles ◽

Core Shell Nanoparticles

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Magnetic properties of FeCo-iron oxide core–shell nanoparticles investigated through first order reversal studies

Applied Physics A ◽

10.1007/s00339-020-04176-z ◽

2021 ◽

Vol 127 (1) ◽

Author(s):

G. Antilen Jacob ◽

R. Justin Joseyphus

Keyword(s):

Magnetic Properties ◽

Iron Oxide ◽

Core Shell ◽

Shell Nanoparticles ◽

First Order ◽

Iron Oxide Core ◽

Core Shell Nanoparticles

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Carbon-coated Fe3O4 core–shell super-paramagnetic nanoparticle-based ferrofluid for heat transfer applications

Nanoscale Advances ◽

10.1039/d1na00061f ◽

2021 ◽

Author(s):

Mohd Imran ◽

Nasser Zouli ◽

Tansir Ahamad ◽

Saad M. Alshehri ◽

Mohammed Rehaan Chandan ◽

...

Keyword(s):

Magnetic Field ◽

Heat Transfer ◽

Thermal Conductivity ◽

External Magnetic Field ◽

Core Shell ◽

Shell Nanoparticles ◽

Carbon Coated ◽

Core Shell Nanoparticles ◽

Fe3o4 Core

Ferrofluids prepared by dispersing superparamagnetic Fe3O4@C core–shell nanoparticles in water exhibited exceptional enhancement in thermal conductivity without an external magnetic field.

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