Envisioning the composition effect on structural, magnetic, thermal and optical properties of mesoporous MgFe2O4-GO nanocomposites
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Abstract
Abstract The effect of variation in composition on the structural, magnetic, optical and photo catalytic activity of magnesium ferrite (MgFe2O4) -graphene oxide (GO) nanocomposites was studied. Magnetic nanocomposites of GO and MgFe2O4 nanoparticles (NPs) with varying w/w ratio were synthesized by facile sonication method. X-Ray diffraction patterns confirmed the presence of spinel ferrite phase in the nanocomposites with the crystalline size 8–32 nm. Fourier transformation infrared (FT-IR) spectra of the nanocomposites displayed absorption bands corresponding to GO and MgFe2O4 NPs along with red shift of bands corresponding to C=O, C=C and O-H stretching. Thermo gravimetric analysis confirmed higher stability of nanocomposites over pristine GO. Saturation magnetization increased from 3.63 to 11.10 emu/g with the increase in content of MgFe2O4 NPs in the nanocomposites. Scanning electron microscopy analysis along with energy dispersive spectroscopy (SEM-EDX) confirmed the presence of MgFe2O4 NPs along with GO sheets. Immobilization of clusters of MgFe2O4 NPs onto GO sheets was evident from transmission electron micrographs (TEM) of all the nanocomposites. BET surface area of the nanocomposites ranged from 63.04 to 165.29 m2/g and was maximum when GO:MgFe2O4 w/w ratio was 1:0.5. It was markedly higher than pristine GO and MgFe2O4 NPs. Optical studies revealed lowering of the band gap in the nanocomposites upto 2.21 eV as compared to pristine MgFe2O4 NPs. Photoluminescence (PL) spectra of nanocomposites displayed quenching of PL intensity with increase of GO content. Band gap also displayed similar trend. The synthesized nanocomposites were used as photocatalysts for methylene blue dye degradation under visible light irradiation. The nanocomposite with GO to MgFe2O4 ratio 1:0.5 displayed best activity with complete degradation of dye in 30 min. The results confirmed that the composition of GO based magnetic nanocomposites can be tailored for efficient removal of contaminants.
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Research context
OpenAlex topics: Magnetic Properties and Synthesis of Ferrites · Electromagnetic wave absorption materials · Graphene research and applications
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References (47)
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1. Magnetic nanoparticles: preparation, structure and properties10.1070/RC2005v074n06ABEH000897 ↗
2. Comparative studies on impact of synthesis methods on structural and magnetic properties of magnesium ferrite nanoparticles10.2298/PAC1403137K ↗
3. M. Kaur, N. Kaur, Vibha, Ferrites: synthesis and applications for environmental remediation (chapter 4), in: Ferrite and Ferrates: Chemistry and Applications For Environmental Remediation, American chemical society, Washington DC, pp. 113–136, 2016.10.1021/bk-2016-1238.ch004 ↗
4. Influence of fuel to oxidizer ratio on LPG sensing performance of MgFe2O4 nanoparticles10.1016/j.matchemphys.2015.05.028 ↗
5. Photocatalytic degradation of acetic acid on spinel ferrites MFe2O4 (M = Mg, Zn and Cd)10.1016/j.catcom.2014.01.016 ↗
6. Graphene based materials: past, present and future10.1016/j.pmatsci.2011.03.003 ↗
7. Recent advances in graphene based polymer composites10.1016/j.progpolymsci.2010.07.005 ↗
8. Preparation of magnetic CoFe2O4-functionalized graphene sheets via a facile hydrothermal method and their adsorption properties10.1016/j.jssc.2011.01.014 ↗
9. Chemically activated graphene/porous Si@SiOx composite as anode for lithium ion batteries10.1016/j.matchemphys.2014.05.026 ↗
10. Reduced graphene oxide-Ni0.5Zn0.5Fe2O4 composite: synthesis and electromagnetic absorption properties10.1016/j.matlet.2015.01.100 ↗
11. Synthesis of porous graphene/activated carbon composite with high packing density and large specific surface area for supercapacitor electrode material10.1016/j.jpowsour.2014.01.056 ↗
12. Graphene and graphene oxide as effective adsorbents toward anionic and cationic dyes10.1016/j.jcis.2011.05.050 ↗
13. Removal of methyl green dye molecule from aqueous system using reduced graphene oxide as an efficient adsorbent: kinetics, isotherm and thermodynamic parameters10.1016/j.colsurfa.2014.05.054 ↗
14. Studies on structural and magnetic properties of ternary cobalt magnesium zinc (CMZ) Co0.6–0.4 Fe2O4 (x = 0.0, 0.2, 0.4, 0.6) ferrite nanoparticles10.1016/j.matchemphys.2015.05.075 ↗
15. MgFe2O4 nanoparticles loaded on activated charcoal for effective removal of Cr (VI) – a novel approach10.1016/j.ceramint.2015.08.040 ↗
16. Fabrication of MgFe2O4/MoS2 heterostructure nanowires for photo electrochemical catalysis10.1021/acs.langmuir.5b03887 ↗
17. Optical and photocatalytic properties of solar light active Nd-substituted Ni ferrite catalysts: for environmental protection
18. Synthesis and photocatalytic activity of ferrites under visible light: a review10.1016/j.seppur.2011.11.034 ↗
19. Photocatalytic degradation of RhB over MgFe2O4/TiO2 composite materials10.1016/j.mseb.2011.09.022 ↗
20. Application of magnetic chitosan composites for the removal of toxic metal and dyes from aqueous solutions10.1016/j.ccr.2016.01.012 ↗
21. Nanomaterials as sorbents for food sample analysis10.1016/j.trac.2016.09.009 ↗
22. Preparation and comparison of catalytic performance for nano MgFe2O4, GO-loaded MgFe2O4 and GO-coated MgFe2O4 nanocomposites10.1016/j.ceramint.2016.09.030 ↗
23. Magnetically separable and recyclable graphene-MgFe2O4 nanocomposites for enhanced photocatalytic applications10.1016/j.jallcom.2015.11.055 ↗
24. Designing MgFe2O4 decorated on green mediated reduced graphene oxide sheets showing photocatalytic performance and luminescence property10.1016/j.physb.2016.11.021 ↗
25. Preparation of graphitic oxide10.1021/ja01539a017 ↗
26. Magnetic Fe3O4-grapheneoxide/polystyrene: fabrication and characterization of a promising nanocomposite10.1016/j.cej.2011.05.093 ↗
27. Synthesis of reduced graphene oxide-Fe3O4 multifunctional free standing membranes and their temperature dependent electronic transport properties10.1016/j.carbon.2011.11.005 ↗
28. A solvothermal method to produce RGO-Fe3O4 hybrid composite for fast chromium removal from aqueous solution10.1016/j.apsusc.2013.07.063 ↗
29. Green synthesis of reduced graphene oxide/Sr2CuMgFe28O46 nanocomposite with tunable magnetic properties10.1016/j.ceramint.2014.04.032 ↗
30. Cullity · 1976
31. Water dispersible magnetite-reduced graphene oxide composites for arsenic removal10.1021/nn1008897 ↗
32. Correlation between structural, magnetic and electrical properties of nanocrystalline Al3+ substituted zinc ferrite10.1016/j.materresbull.2013.03.012 ↗
33. Surface study of fine MgFe2O4 ferrite powder prepared by chemical methods10.1016/j.apsusc.2007.09.024 ↗
34. Quenching of magnetic moments by ligand–metal interactions in nanosized magnetic metal clusters10.1103/PhysRevLett.73.1432 ↗
35. Assembly-mediated interplay of dipolar interactions and surface spin disorder in colloidal maghemite nanoclusters10.1039/C3NR06103E ↗
36. Structural, morphological and magnetic investigations of CuCe0.2Fe1.8O4 graphene-supported nanocomposites10.1016/j.ceramint.2015.09.083 ↗
37. Balaz · 2008
38. Simultaneous synthesis of Au and Cu nanoparticles in pseudo-core-shell type arrangement facilitated by DMPG and 12-6-12 capping agents10.1021/cm062771t ↗
39. Synthesis of nanocomposite gold-semiconductor materials by seed-growth method10.1016/j.matlet.2006.12.074 ↗
40. Magnetite: behavior near the single-domain threshold10.1126/science.176.4030.41 ↗
41. Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity10.1351/pac198557040603 ↗
42. Mesopore determination from nitrogen sorption isotherms: fundamentals, scope, limitations10.1016/S0167-2991(09)60243-3 ↗
43. Highly biocompatible chitosan with super paramagnetic calcium ferrite (CaFe2O4) nanoparticle for the release of ampicillin10.1016/j.ijbiomac.2017.01.036 ↗
44. Manganese substituted cobalt ferrites as efficient catalysts for H2O2 assisted degradation of cationic and anionic dyes: their synthesis and characterization10.1016/j.apcata.2014.08.020 ↗
45. P25-graphene composite as a high performance photocatalyst10.1021/nn901221k ↗
46. High magnetization and the faraday effect for ferrimagnetic zinc ferrite thin film10.1088/0953-8984/15/30/101 ↗
47. Photoluminescence of well-aligned ZnO doped CeO2 nanoplatelets by a solvothermal route10.1016/j.matlet.2014.01.048 ↗