Modified structural and magnetic properties of nanocrystalline MnFe2O4 by pH in capping agent free co-precipitation method

Iranmanesh, P.; Saeednia, Samira; Mehran, Muhammad Taqi; Dafeh, Sajjad Rashidi

doi:10.1016/j.jmmm.2016.10.105

Cited by 44 publications

(17 citation statements)

References 45 publications

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“…Vadivel et al reported that the M s value of CoFe 2 O 4 nanoparticles increased with increasing SDS surfactant concentration; the highest M s value was 138.75 emu/g at 0.08 M of SDS surfactant [ 49 ]. The M s values of the synthesized MnFe 2 O 4 in this work are in the range of 15–69 emu/g, consistent with other previous reports [ 11 , 17 , 18 , 23 , 24 , 32 , 33 , 34 , 35 , 39 , 41 , 61 ]. When comparing the M s values in the bulk or film forms, the M s value of the presently synthesized MnFe 2 O 4 nanoparticle is lower than that of the bulk form at 82 emu/g [ 61 ], but higher than the film form at 38 emu/g [ 61 ].…”

Section: Resultssupporting

confidence: 92%

“…The saturation magnetization increased with increasing Mn 2+ ion content, as the Mn 2+ ion magnetic moment is higher than the Fe 2+ ion [ 31 ]. Other works on the manganese ferrite synthesis were reported with the saturation magnetizations and particle sizes to be between 15–69 emu/g and 5–46 nm, respectively [ 9 , 17 , 18 , 23 , 24 , 32 , 33 , 34 , 35 ].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Characterization of Fe0.8Mn0.2Fe2O4 Ferrite Nanoparticle with High Saturation Magnetization via the Surfactant Assisted Co-Precipitation

2021

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Manganese ferrite nanoparticles (MnFe2O4) were synthesized via surfactant-assisted co-precipitation, where sodium dodecyl sulfate (SDS) was used as the template to control particle size at various SDS concentrations. The substitutions of iron (II) (Fe2+) into the MnFe2O4 ferrite nanoparticles were carried out to obtain Fe(1–x)MnxFe2O4, with various Mn2+: Fe2+ molar ratios. The synthesized ferrite nanoparticles were characterized by the Fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analyzer (TGA), X-ray diffractometer (XRD), energy dispersive X-ray (EDX), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), transmission electron microscope (TEM), two-point probe, and vibrating sample magnetometer (VSM) techniques. The experimental Mn:Fe mole ratios of the Fe(1−x)MnxFe2O4 ferrite nanoparticles were verified to be in agreement with the theoretical values. The synthesized MnFe2O4 and Fe(1−x)MnxFe2O4 ferrite nanoparticles were of mixed spinel structures, with average spherical particle sizes between 17–22 nm, whereas the magnetite ferrite nanoparticles (Fe3O4) were of the inverse spinel structure. They showed soft ferromagnetic behavior. The synthesized Fe0.8Mn0.2Fe2O4 ferrite nanoparticle possessed the highest saturation magnetization of 88 emu/g relative to previously reported work to date.

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Fe0.8Mn0.2Fe2O4 Ferrite Nanoparticle with High Saturation Magnetization via the Surfactant Assisted Co-Precipitation

2021

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“…For the synthesis of manganese doped IONPs, the coprecipitation route is followed 14 . Stoichiometric amounts of FeCl 3, FeCl 2 .4H 2 O and MnCl 2 .…”

Section: Methodsmentioning

confidence: 99%

Biotransformation and toxicity evaluation of functionalized manganese doped iron oxide nanoparticles

et al. 2021

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Safe inorganic nanomaterials are tremendously used for diagnosis and therapies. However, essential processing in the microbiological environment changed the physical properties and in situ degradability, which is evaluated meticulously. In this research article, bare, Polyethylene glycol, and citrate coated manganese doped iron oxide nanoparticles are synthesized through the coprecipitation route. Structural, magnetic, optical, and morphological analyses are performed through different characterization tools. X‐ray diffraction confirmed the formation of single‐phase FeMnO3 with a crystallite size of 48.91 nm. Vibrating sample magnetometer analysis confirmed the formation of soft ferromagnetic behavior of bare and coated nanoparticles (NPs). Scanning electron microscopy and transmission electron microscopy confirmed the formation of spherical shaped nanoparticles. Single‐dose in vivo acute toxicity testing is performed through the intraperitoneal route of administration on groups of healthy albino rats. Elevated enzyme levels of kidney and liver are observed at day 1 but a transient decrease is observed at later stages. Through optical follow‐up, degradation effects are studied by adding prepared NPs in lysosomal like medium. Finally, metabolization of degraded products based on manganese/iron ions is studied by adding apoferritin into a lysosome like solution. These studies showed partial storage of manganese ions from NPs, while no substantial transfer is observed in the case of manganese salt.

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“…Nanopartikel spinel ferrit mempunyai rumus struktur MFe2O4 (M= Mn 2+, Co 2+, , Fe 2+, , Ni 2+, , Mg 2+ , Cu 2+, , Zn 2+, ) dengan struktur kristal kubik spinel (Iranmanesh et al 2017), memiliki rasio luas permukaan yang besar terhadap volume dan sifat magnetik yang unik seperti koersivitas tinggi, magnetisasi sedang, pemfilteran spin, dan efek domain tunggal. Aplikasi spinel ferrit dari jenis MFe2O4 telah menarik perhatian peneliti selama beberapa dekade, seperti perekaman magnetik, penyimpanan energi magnetik, katalisis, biomedis, dan pengolahan air limbah (Gingasu et al 2016).…”

Section: Pendahuluanunclassified

Ekstrak Daun Andalas sebagai Capping Agent dalam Green Hydrothermal Synthesis Nanopartikel Mangan Ferrit dan Aplikasinya sebagai Antibakteri

2019

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Abstrak: Pada penelitian ini telah dilakukan sintesis nanopartikel MnFe2O4 secara hidrotermal menggunakan ekstrak daun andalas (M. macroura Miq.) sebagai capping agent. Penelitian ini bertujuan untuk mengetahui pengaruh pH terhadap bentuk dan ukuran nanopartikel MnFe2O4. MnFe2O4 EN10 dan MnFe2O4 EN12 disintesis menggunakan ekstrak daun andalas dan NaOH dengan pH masing-masing 10 dan 12, sementara MnFe2O4 N10 dan MnFe2O4 N12 disintesis tanpa menggunakan ekstrak daun andalas hanya dengan penambahan NaOH pada pH 10 dan 12. Hasil analisis X-Ray Diffraction (XRD) menunjukkan karakteristik MnFe2O4 spinel kubik dengan ukuran kristal 11-16 nm, sedangkan MnFe2O4 E menunjukkan tidak terbentuknya spinel ferrit MnFe2O4 yang terbentuk hanya pengotor yaitu α-Fe2O3. Hasil karakterisasi Scanning Electron Microscopy (SEM) menunjukkan bahwa morfologi nanopartikel MnFe2O4 berbentuk spheric. Nanopartikel MnFe2O4 diaplikasikan sebagai antibakteri terhadap bakteri S. aureus dan E. coli dengan metode sumur.Kata kunci: MnFe2O4, hidrotermal, daun andalas, green synthesis, antibakteri Abstract: In this study hydrothermal synthesis of MnFe2O4 nanoparticles was carried out using andalas leaf extract (M. macroura Miq.) as capping agent. This study aims to determine the effect of pH on the shape and size of MnFe2O4 nanoparticles. MnFe2O4 EN10 and MnFe2O4 EN12 were synthesized using andalas leaf extract and NaOH with a pH of 10 and 12, respectively, while MnFe2O4 N10 and MnFe2O4 N12 were synthesized without using andalas leaf extract only by adding NaOH at pH 10 and 12. X-Ray Diffraction analysis results (XRD) shows the characteristics of MnFe2O4 cubic spinel with a crystal size of 11-16 nm, whereas MnFe2O4 E shows no formation of spinel ferrite MnFe2O4 which formed only impurities namely α-Fe2O3. The results of the characterization of Scanning Electron Microscopy (SEM) showed that the morphology of MnFe2O4 nanoparticles was spheric. MnFe2O4 nanoparticles were applied as antibacterial to the bacteria S. aureus and E. coli with the well method.

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Modified structural and magnetic properties of nanocrystalline MnFe2O4 by pH in capping agent free co-precipitation method

Cited by 44 publications

References 45 publications

Synthesis and Characterization of Fe0.8Mn0.2Fe2O4 Ferrite Nanoparticle with High Saturation Magnetization via the Surfactant Assisted Co-Precipitation

Synthesis and Characterization of Fe0.8Mn0.2Fe2O4 Ferrite Nanoparticle with High Saturation Magnetization via the Surfactant Assisted Co-Precipitation

Biotransformation and toxicity evaluation of functionalized manganese doped iron oxide nanoparticles

Ekstrak Daun Andalas sebagai Capping Agent dalam Green Hydrothermal Synthesis Nanopartikel Mangan Ferrit dan Aplikasinya sebagai Antibakteri

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