Pengaruh Konsentrasi HCl terhadap Mikrostruktur dan Sifat Kemagnetan Nanopartikel Fe3O4 yang Disintesis dari Pasir Besi Pantai Glagah Kulonprogo

Swastika, Pinaka Elda; Hardheyanti, Farida; Prasetyowati, Rita; Ariswan, Ariswan; Warsono, Warsono

doi:10.21831/jsd.v10i1.39141

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…This finding is supported by Jesus et al, who obtained a lattice parameter of a=b=c=8.348Å, and Swastika et al, who reported a crystallite size of 72 nm. In contrast, Bukit et al found a crystallite size of 14.90 nm and a lattice parameter of 8.383Å [18], [19], [20]. The crystallite size of Fe3O4 nanoparticles of 18.43 nm indicates tiny magnetite grains.…”

Section: Resultsmentioning

confidence: 99%

SYNTHESIS OF MAGNETITE NANOPARTICLES (Fe3O4) BASED ON TAMAN RIVER SAND MAGNETIC MINERALS

Agung,

Mardana,

Arjana

2024

IPR

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This research aims to produce Fe3O4 magnetic nanoparticles-based Taman River sand as the raw material through coprecipitation. The Fe content percentage in the Taman River sand after separation was characterized using XRF testing. The lattice parameters and crystal size of the samples were tested using XRD. The nanoparticles' morphology, structure, particle shape, and elemental content were characterized using SEM-EDX. The magnetic properties and magnetic saturation values were tested using VSM. XRF testing results on the iron sand showed a Fe content of 84.72%. The synthesis resulted in a brNownish-black Fe3O4 nanoparticle powder that a permanent magnet could attract. Based on the XRD results, the Fe3O4 nanoparticle powder peaks were obtained at X-ray diffraction pattern angles of 2θ: 21.44°, 35.38°, 41.74°, 50.78°, 63.36°, 67.70°, and 74.66°, indicating the presence of Fe3O4 nanoparticles. The crystal structure formed was cubic with lattice parameters a = b = c = 8.331 Å and a crystal size of 18.43 nm. SEM-EDX results showed an average particle size of 25-30 nm. VSM results indicated that the Fe3O4 sample had a saturation magnetization (Ms) of 27.36 emu/g, a remanent magnetization (Mr) of -0.01 emu/g, and a coercive field (Hc) of 0.01 T.

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Section: Resultsmentioning

confidence: 99%

SYNTHESIS OF MAGNETITE NANOPARTICLES (Fe3O4) BASED ON TAMAN RIVER SAND MAGNETIC MINERALS

Agung,

Mardana,

Arjana

2024

IPR

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“…Pada tahap ini, padatan kering hasil preparasi (3.1) dilarutkan dengan HCl 37% menghasilkan larutan sempurna berwarna kuning jingga yang dapat dilihat pada Gambar 3. Reaksi yang mungkin terjadi antara lain sebagai berikut [20] : FeTiO3(s) + 4HCl(l) → FeCl2(aq) + TiOCl2(s) + 2H2O(g) Fe2O3(s) + 6HCl(l) → 2FeCl3(aq)+3H2O(l) Na2TiSiO5(s) + 4 HCl(aq) → TiOCl2(aq) + H2SiO3(aq) +2NaCl(aq) + H2O(l) Masing-masing 50 mL larutan pasir dalam HCl 37% dimasukkan ke dalam 4 gelas kimia yang ditandai sebagai: A1 (basa: NaOH 5 M, pH akhir presipitasi: 10), B1 (basa: NH4OH, pH akhir presipitasi: 8), B2 (basa: NH4OH, pH akhir presipitasi: 10) dan B3 (basa: NH4OH, pH akhir presipitasi: 12). Sampel A1 menghasilkan larutan berwarna coklat yang kemudian membentuk endapan berwarna coklat pada akhir proses presipitasi (Gambar 4), yang menandakan terbentuknya endapan ferit dan kemungkinan terjadinya oksidasi senyawa besi(II) menjadi ion besi(III) [21,22] .…”

Section: Ekstraksi Tio2 Dari Larutan Asam Klorida Menggunakan Basa De...unclassified

Extraction of Titanium Compounds From Chloride Acid Solution of Bauxite Residue Using Acid-Base Precipitation Method

Ernilia,

Silalahi,

Zaharah

2024

indonesian

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The bauxite residue from the Bayer process can be categorized into red cake and iron sand. In this paper the iron sand has been characterized and used as a research object in order to obtain material with a higher concentration of the titanium element. Iron sand has a dominant chemical content of 60% iron and 10% titanium. Titanium can be extracted by several methods, one of which is the precipitation method. The precipitation process involves dissolving minerals in an acidic solution and extracting them with a base. The type of base and the pH are factors that affect the precipitation process. The aim of this study is to determine the effect of variations in pH and type of base on the extraction of TiO2 from a solution of iron sand in hydrochloric acid and to determine the elemental composition of the precipitation product. The first treatment of the iron sands was magnetic separation, which yielded 31.76% of relatively weakly magnetic sand. The magnetic sand was leached by using HCl (25%) to result in a solid with a percentage recovery of 40.8%, followed by an alkali fusion reaction with NaOH to give 56.85% of material. This material was then dissolved in the concentrated HCl and precipitated with NH4OH and NaOH at various pH values. The elemental analysis by using XRF of the precipitation products shows that the precipitation in NH4OH and pH 8 gives the material with the highest content of the element Ti, which is 49.5%, increases from only 10% in the iron sand. The selectivity of titanium for the iron element seems to be higher for the precipitation in NaOH, pH 8 than in NH4OH, pH 8, with Ti/Fe ratios of 1.50 and 1.44, respectively

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“…Previous research on iron sand on the island of Lombok has examined the mineral content of coastal iron sand [2,3,6]. However, not many have investigated the morphological analysis of the iron sand [24,25]. Not many have analyzed comparison of mineral content of coastal and rivers iron sand and the comparison of morphological characteristics of magnetic mineral based on coastal and river sand.…”

Section: Introductionmentioning

confidence: 99%

Morphological Characteristics and Mineral Content Analysis of Magnetic Minerals Based on River and Coastal Sand using SEM-EDX

Meiliyadi¹,

Damayanti²,

Jumliati³

et al. 2021

JSD

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This study aims to analyze the mineral content and morphological characteristics of magnetic minerals based on coastal and river sand. Analysis of minerals content uses Atomic Absorption Spectroscopy (AAS) to determine the content of Fe and Energy Dispersive X-Ray (EDX) to determine the elements of magnetic minerals based on coastal and river sand. While the morphological characteristics were analyzed using Scanning Electron Microscope (SEM). Based on the AAS analysis, magnetic mineral based on coastal sand has higher Fe content (9.03 mg/gram) compared to magnetic mineral based on river sand (8.03 mg/gram). This is also confirmed by EDX analysis where the Fe content of magnetic mineral based on coastal sand is 2.07 ± 0.21%. This value is greater than the Fe content of magnetic mineral based on river sand which cannot be measured by EDX. Morphological analysis using SEM shows that magnetic mineral based on coastal sand has a relatively uniform particle size compared to magnetic mineral based on river sand. The particle size of magnetic minerals based on coastal sand also smaller than magnetic minerals based on river sand. Coastal sand also has finer size compared to river sand. This is because coastal sand sediments are formed due to the energy of sea waves so that they have a smoother structure. While river sand sediments come from limestone deposits that have a fine and coarse structure.

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Pengaruh Konsentrasi HCl terhadap Mikrostruktur dan Sifat Kemagnetan Nanopartikel Fe3O4 yang Disintesis dari Pasir Besi Pantai Glagah Kulonprogo

Cited by 5 publications

References 12 publications

SYNTHESIS OF MAGNETITE NANOPARTICLES (Fe3O4) BASED ON TAMAN RIVER SAND MAGNETIC MINERALS

SYNTHESIS OF MAGNETITE NANOPARTICLES (Fe3O4) BASED ON TAMAN RIVER SAND MAGNETIC MINERALS

Extraction of Titanium Compounds From Chloride Acid Solution of Bauxite Residue Using Acid-Base Precipitation Method

Morphological Characteristics and Mineral Content Analysis of Magnetic Minerals Based on River and Coastal Sand using SEM-EDX

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