Structure and magnetic properties of magnetic iron oxide/zinc oxide core/shell nanocomposites: Effect of ZnO coating
Source abstract
Abstract
Abstract This paper presents a comprehensive view of effect of ZnO coating on structure and magnetic properties of the magnetic iron oxide/ZnO core/shell nanocomposites. The nanocomposites with Fe:Zn molar ratio of 7:1, 5:1 and 3:1 were synthesized by using two-step co-precipitation method. Crystal structure, microstructure, composition, valence state, morphology and magnetic properties of the samples were systematically investigated by using synchrotron X-ray diffraction, X-ray absorption near-edge spectroscopy, Fourier transform infrared spectra, field emission scanning electron microscope, transmission electron microscopy and vibrating sample magnetometer. The obtained results indicated that the nanocomposites exhibit superparamagnetic behavior at room temperature. Structure and magnetic properties of the nanocomposites are strongly influenced by ZnO content as microstrain increases, magnetization and blocking temperature decrease upon ZnO coating. The change in magnetic properties of the nanocomposites has been discussed based on detailed information on composition and structure, spin canting and surface effect.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Iron oxide chemistry and applications · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
Show source-provided references
1. Goldman · 2006 · 438
2. Oxidation of magnetite nanoparticles: impact on surface and crystal properties10.1039/C6CE02421A ↗
3. Photocatalytic degradation of methylene blue by ZnO/NiFe2O4 nanoparticles10.1016/j.apsusc.2018.05.184 ↗
4. A review of ZnO nanoparticles as solar photocatalysts : Synthesis, mechanisms and applications10.1016/j.rser.2017.08.020 ↗
5. Fe3O4@ZnO core-shell nanocomposites for efficient and repetitive removal of low density lipoprotein in plasma and on blood vessel10.1088/0957-4484/26/12/125101 ↗
6. Recovering magnetic Fe3O4-ZnO nanocomposites from algal biomass based on hydrophobicity shift under UV irradiation10.1021/acsami.5b03472 ↗
7. Controllable fabrication of Fe3O4/ZnO core-shell nanocomposites and their electromagnetic wave absorption performance in the 2-18 GHz frequency range
8. Design of super-paramagnetic core–Shell nanoparticles for enhanced performance of inverted polymer solar cells10.1021/acsami.5b09686 ↗
9. Core-shell Fe3O4-ZnO nanoparticles decorated on reduced graphene oxide for enhanced photoelectrochemical water splitting10.1016/j.ceramint.2014.12.084 ↗
10. Preparation, characterization and application of Fe3O4/ZnO core/shell magnetic nanoparticles10.1016/j.materresbull.2007.07.035 ↗
11. Fabrication of Fe3O4/ZnO magnetite core shell and its application in photocatalysis using sunlight10.1016/j.matchemphys.2018.06.020 ↗
12. Nonquenching of charge carriers by Fe3O4 core in Fe3O4/ZnO nanosheet photocatalyst10.1021/la5039409 ↗
13. Multifunctional Fe3O4-ZnO nanocomposites for environmental remediation applications
14. Preparation and photocatalytic properties of magnetically reusable Fe3O4@ZnO core/shell nanoparticles10.1016/j.physe.2015.08.040 ↗
15. Effect of Fe3O4 content and microwave reaction time on the properties of Fe3O4/ZnO magnetic nanoparticles10.1016/j.jallcom.2018.12.085 ↗
16. Fe3O4 embedded ZnO nanocomposites for the removal of toxic metal ions, organic dyes and bacterial pathogens10.1039/c2ta01045c ↗
17. Insight into antibiotics removal: Exploring the photocatalytic performance of a Fe3O4/ZnO nanocomposite in a novel magnetic sequential batch reactor10.1016/j.jenvman.2019.02.089 ↗
18. A magnetically separable photocatalyst based on nest-like γ-Fe2O3/ZnO double-shelled hollow structures with enhanced photocatalytic activity10.1039/C1NR11114K ↗
19. Precisely controlled fabrication of magnetic 3D γ-Fe2O3@ZnO core-shell photocatalyst with enhanced activity: Ciprofloxacin degradation and mechanism insight10.1016/j.cej.2016.09.093 ↗
20. Synthesis and characterization of Fe3O4 and ZnO nanocomposites by the sol–gelmethod10.1016/j.jmmm.2013.01.016 ↗
21. Synthesis and characterization of ferromagnetic Fe3O4–ZnO Hybrid core–shell nanoparticles10.1007/s11664-018-6171-3 ↗
22. Study of structural and magnetic properties of superparamagnetic Fe3O4–ZnO core–shell nanoparticles10.1007/s10948-013-2469-9 ↗
23. Synthesis and characterization of Fe3O4@ZnO core–shell structured nanoparticles10.1016/j.matchemphys.2008.10.039 ↗
24. Heterogeneous seeded growth: Synthesis and characterization of bifunctional Fe3O4/ZnO core/shell nanocrystals10.1021/jp100848m ↗
25. Core/shell nanoparticles: classes, properties, synthesis mechanisms, characterization, and applications10.1021/cr100449n ↗
26. Superparamagnetic FexOy@SiO2 core-shell nanostructures: controlled synthesis and magnetic characterization10.1021/jp0665067 ↗
27. Preparation and characterization of γ-Fe2O3/ZnO composite particles10.1016/j.matlet.2008.05.006 ↗
28. Synthesis and characterization of NiFe2O4/ZnO core-shell nanocomposites
29. Wohlfarth · 1986 · vol. 2
30. Performance and status of beamline BL8 at SLRI for X-ray absorption spectroscopy10.1107/S0909049512040381 ↗
31. ATHENA, ARTEMIS, HEPHAESTUS: data analysis for X-ray absorption spectroscopy using IFEFFIT10.1107/S0909049505012719 ↗
32. Rietveld refinement guidelines10.1107/S0021889898009856 ↗
33. Tunable synthesis of carboxyl-functionalized magnetite nanocrystal clusters with uniform size10.1039/b910832g ↗
34. Influence of Y and La substitution on particle size, structural and magnetic properties of nanosized nickel ferrite prepared by using citrate precursor method10.1016/j.jallcom.2015.04.240 ↗
35. EXAFS and XANES analysis of oxides at the nanoscale10.1107/S2052252514021101 ↗
36. The infrared dielectric-properties of maghemite, γ-Fe2O3, from reflectance measurement on pressed powders10.1007/BF00202677 ↗
37. Electronic, optical, and structural properties of some wurtzite crystals10.1103/PhysRevB.48.4335 ↗
38. High performance, recoverable Fe3O4-ZnO nanoparticles for enhanced photocatalytic degradation of phenol10.1016/j.cej.2014.01.075 ↗
39. Deposition of ZnO nanocrystals on Fe3O4 nanocubes and their special luminescent and magnetic properties10.1002/ppsc.201500053 ↗
40. Synthesis of Fe3O4@SiO2@ZnO core-shell structured microspheres and microwave absorption properties10.1016/j.apt.2015.08.014 ↗
41. Cullity · 2009
42. Cation distribution assisted tuning of magnetization in nanosized magnesium ferrite10.1002/pssa.201700397 ↗
43. Cation distribution in CuFe2O4 nanoparticles: effects of Ni doping on magnetic properties10.1063/1.4961722 ↗
44. Temperature-dependent magnetic properties of yttrium iron garnet nanoparticles prepared by citrate sol–gel10.1016/j.jallcom.2012.06.122 ↗
45. Surface and internal spin canting in γ-Fe2O3 nanoparticle10.1021/cm991018f ↗
46. Magnetic properties of cobalt ferrite-silica nanocomposites prepared by a sol-gel autocombustion technique10.1063/1.2354475 ↗
47. Determination of the blocking temperature of magnetic nanoparticles: the good, the bad, and the ugly10.1063/1.4935484 ↗
48. The interplay between single particle anisotropy and interparticle interactions in ensembles of magnetic nanoparticles10.1039/C8CP03934H ↗
49. Synthesis and magnetic characterization of zinc ferrite nanoparticles with different environments: powder, colloidal solution, and zinc ferrite-silica core-shell nanoparticles10.1021/la020322b ↗
50. Coexistence of superparmagnetism and spin-glass like magnetic ordering phenomena in a CoFe2O4-SiO2 nanocomposite10.1021/jp076704d ↗