Preparation of Superparamagnetic Zn0.5Mn0.5Fe2O4Particle by Coprecipitation-Sonochemical Method for Radar Absorbing Material

Taufiq, Ahmad; Bahtiar, Syamsul; Sunaryono, Sunaryono; Hidayat, Nurul; Hidayat, Arif; Mufti, Nandang; Diantoro, Markus; Fuad, Abdulloh; Munasir, Munasir; Rahmawati, Retno; Adi, Wisnu Ari; Pratapa, Suminar; Darminto, Darminto

doi:10.1088/1757-899x/202/1/012024

Cited by 7 publications

(6 citation statements)

References 24 publications

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“…The particle size of the Fe3O4/AC/PANI nanocomposites was analyzed quantitatively by using the Scherrer equation shown in Equation 1. 1where D is the particle size (nm), K is a constant (0.94), λ is the wavelength (1.5443 Å), β is the full width of halfmaximum, and θ is the Bragg angle from the highest peak [2]. The particle sizes obtained from the fitting results by using the Lorentzian method are shown in Table 1.…”

Section: Resultsmentioning

confidence: 99%

“…where α is the absorption coefficient, A is the effective mass of the electron, h is the Planck constant which is 6.55×10 -34 Js, and v is the frequency [35]. The energy gap values were analyzed by using the Tauc plot method, where the energy gap is an intercept on the x-axis of the graph of the relationship between hv and (αhv) 2 .…”

Section: Resultsmentioning

confidence: 99%

“…One of the studies on electromagnetic wave absorbers which began to be widely studied by researchers was *Corresponding Author Email: ahmad.taufiq.fmipa@um.ac.id (A. Taufiq) radar absorbing materials (RAM) [2,3]. Theoretically, RAM is an absorbent material for microwaves that works by reducing the radar cross-section or converting microwaves to heat energy [4].…”

Section: Introductionmentioning

confidence: 99%

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Radar Absorption Performance of Fe3O4/AC/PANI Nanocomposites Prepared from Natural Iron Sand

Taufiq

Sutiami

Subadra

et al. 2020

IJE

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In this work, the Fe3O4 nanoparticles from natural iron sand were combined with active carbon (AC) and polyaniline (PANI) to obtain Fe3O4/AC/PANI nanocomposites with mass variations of the AC of 0.1, 0.2, 0.3, 0.4, and 0.5 g. The crystalline phase of Fe3O4/AC/PANI nanocomposites formed from Fe3O4 with PANI having an amorphous phase. Meanwhile, the crystalline phase of AC was unmatched because of its very small composition. The presence of AC was observed through vibrations from the CC and COOH functional groups. The existence of PANI was indicated by the vibrations of the benzoic ring and quinonoid bonds. Besides, the presence of Fe3O4 was confirmed by the presence of Fe-O functional groups from octahedral and tetrahedral positions. The optical properties of Fe3O4/AC/PANI nanocomposites were shown by increasing the energy gap along with decreasing absorption wavelength. Interestingly, increasing AC composition made the absorption bandwidth of the Fe3O4/AC/PANI nanocomposites wider, so that the radar absorption also increased marking by the greater reflection loss that reached-15.8 dB. The increase in the radar absorption performance of Fe3O4/AC/PANI nanocomposites came from the efficient complementarity between dielectric loss and magnetic loss and interfacial polarization between Fe3O4-AC or between Fe3O4-PANI.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Radar Absorption Performance of Fe3O4/AC/PANI Nanocomposites Prepared from Natural Iron Sand

Taufiq

Sutiami

Subadra

et al. 2020

IJE

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“…D is the crystal size, K is a constant,  is the width of half the peak in maximum intensity (FWHM),  is the wavelength, and  is the Bragg angle of the highest peak [31]. The measurement results using Equation 1 obtained the particle size of the nanocomposite MnxFe3-xO4-Poly(m-ABS) ranging from 10.62 nm.…”

Section: Xrd Characterizationmentioning

confidence: 99%

Study of the Structure of MnxFe3-xO4-Poly(m-Aminobenzene Sulfonic Acid) Composites Based on Natural Sand

Choerullah,

Sunaryono,

Hidayat

et al. 2022

JPSE

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MnxFe3-xO4-Poly(m-ABS) nanocomposite has been successfully synthesized by in-situ polymerization. In the formation of MnxFe3-xO4-Poly(m-ABS) nanocomposites, FeCl synthesized from iron sand acts as an oxidant and m-aminobenzenesulfonic acid (m-ABS) as a monomer. Structural characterization has been successfully carried out using XRD, FTIR, and SEM. XRD test results show that the MnxFe3-xO4-Poly(m-ABS) nanocomposite has a particle size of about 10.62 nm. The appearance of peaks (111) and (620) with low intensity indicated the presence of poly(m-ABS). This low intensity was probably caused by the amorphous character of polyaniline and its derivatives. The FTIR results show the appearance of asymmetrical and symmetrical S=O strains, S-O, and C-S strains are the main characteristics of poly(m-ABS) which indicate the success of monomer polymerization. The results of the SEM test show that circular shapes dominate the particles with varying sizes with an average size of 42 nm. This result is different from the XRD results because SEM can only measure the surface of the particles, so the resulting size tends to be larger. Based on the study of the structure obtained shows that the MnxFe3-xO4-Poly(m-ABS) nanocomposite has the potential to be applied to energy conversion devices.

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“…Manganese ferrite memiliki ketahanan temperatur tinggi, tidak mudah korosi, dan sifat mekanik yang kuat sehingga tahan terhadap reaksi dari lingkungan luar [3]. Paduan tersebut bisa digunakan sebagai perangkat microwave dan aplikasi perekaman magnetik[4], di dunia industri manganese ferrite dijadikan Thermal Barrier Coating (TBC), industri bahan kimia, dan pigmen [5], Sedangkan dalam orde nano meter manganese ferrite bisa diaplikasikan dalam material anti radar dan sebagai material absorben [6,7].…”

Section: Pendahuluanunclassified

Sintesis Manganese Ferrite Dengan Metode Mechanical Alloying Dari Bijih Mangan Alam

Bahtiar¹,

Eltara²,

Widyawati³

et al. 2022

Hxg

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Salah satu sumber daya alam bijih mangan terbesar di Indonesia terdapat di Kab. Sumbawa Besar dan memiliki kadar mangan tinggi. Bijih mangan dapat dimanfaatkan dalam bentuk senyawa manganese ferrite. Sintesis manganese ferrite (MnFe2O3) terdiri dari paduan bijih mangan oksida (MnO2) dan hematit (Fe2O3) yang didapat dari mill scale limbah produksi baja. Kedua partikel tersebut kemudian dipadukan dengan metode mechanical alloying. Bijih mangan terlebih dahulu dikalsinasi pada variasi temperatur 400oC, 500oC, dan 600oC. Proses mechanical alloying paduan bijih mangan dan hematit dengan memvariasikan jumlah bijih mangan 1:1, 1:2, 1:3, 1:4. Selanjutnya campuran partikel tersebut dikalsinasi pada temperatur 1100oC selama 3jam untuk mendapatkan manganese ferrite yang homogen. Karakterisasi XRD awal didapatkan bijih mangan berbentuk pyrochroite (Mn(OH)2) dan setelah kalsinasi pada temperatur 500oC terbentuk pyrolusite (MnO2). Hasil akhir karakterisasi XRD dan XRF menunjukkan bahwa penambahan MnO2 pada Fe2O3 menghasilkan manganese ferrite bixbite (MnFe2O3) dengan intensitas pembentukan 70%. Fasa MnFeO3 dominan pada perbandingan 4:1. Semakin banyak penambahan MnO2 pada Fe2O3, maka semakin banyak fasa manganese ferrite bixbite yang terbentuk.

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Preparation of Superparamagnetic Zn_0.5Mn_0.5Fe₂O₄Particle by Coprecipitation-Sonochemical Method for Radar Absorbing Material

Cited by 7 publications

References 24 publications

Radar Absorption Performance of Fe3O4/AC/PANI Nanocomposites Prepared from Natural Iron Sand

Radar Absorption Performance of Fe3O4/AC/PANI Nanocomposites Prepared from Natural Iron Sand

Study of the Structure of MnxFe3-xO4-Poly(m-Aminobenzene Sulfonic Acid) Composites Based on Natural Sand

Sintesis Manganese Ferrite Dengan Metode Mechanical Alloying Dari Bijih Mangan Alam

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