Sintesis Nanopartikel Magnet Zn-Ferrite (Znfe2o4) Berbahan Dasar Pasir Besi Menggunakan Metode Kopresipitasi

Saputra, Fandi Musthofa Ananda; Puspitarini, Yani; Rizaldi, Priyandika Dwi; Firdaus, Muhammad Samsul Arifin; Sujarwata, Sujarwata

doi:10.15294/jcs.v1i1.7718

Cited by 3 publications

(2 citation statements)

References 1 publication

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“…Berdasarkan hasil karaktrisasi menggunakan UV-Vis, pigmen merah hematit hasil sintesis memiliki serapan maksimum pada panjang gelombang 268 nm. Pigmen merah hematit akan menyerap pada rentang panjang gelombang 200 -400 nm (wilayah 1) disebabkan transisi elektron, transisisi transfer muatan ligan ke logam dan morfologi dari nanopartikel hematit [11].…”

Section: Analisis Xrdunclassified

Sintesis dan Karakterisasi Pigmen Merah Hematit (α-Fe2O3) dari Pasir Besi Kabupaten Sijunjung, Sumatera Barat, Indonesia

Soekansa,

Sudirman,

Aini

2023

Periodic

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Hematite red pigment has been successfully synthesized from natural iron sand originating from the Sijunjung area, West Sumatra, Indonesia. The purified natural iron sand contains magnetic dioxide particles to produce ferric ions (Fe 3+ ) which can be used as precursors for the synthesis of the red pigment hematite. Hematite red pigment synthesis was carried out by coprecipitation method with NaOH precipitating agent. The red pigment hematite was synthesized by varying the mass solubility of 1 g, 1.5 g, and 2 g which were reacted with 4 M, 5 M, and 6 M HCl to produce a precursor with the highest ferric ion solubility. The precursor with the highest ferric ion solubility was formed from the reaction between 1 g of pure iron sand and 6 M HCl. The second variation was the increase in calcination temperature, namely 650 o C, 700 o C, 750 o C, and 800 o C, with a calcination temperature of 800 o C producing the brightest red pigment hematite. The higher the calcination temperature causes an increase in the brightness of the synthetic red pigment hematite. The characterization was carried out using XRD to see the crystal structure of the product and UV-Vis to see the absorption wavelength.

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Section: Analisis Xrdunclassified

Sintesis dan Karakterisasi Pigmen Merah Hematit (α-Fe2O3) dari Pasir Besi Kabupaten Sijunjung, Sumatera Barat, Indonesia

Soekansa,

Sudirman,

Aini

2023

Periodic

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“…Metode kopresipitasi termasuk metode yang relatif efisien dan sederhana disebabkan oleh prosesnya yang menggunakan suhu rendah dan ukuran partikel yang dapat dikontrol sehingga waktu yang dibutuhkan relatif singkat [11]. Prinsip kerja dari metode ini adalah dengan mengubah suatu garam logam menjadi endapan dengan menggunakan pengendap basa hidroksida atau karbonat, yang kemudian diubah ke bentuk oksidanya dengan cara pemanasan.…”

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Sintesis dan Karakterisasi Zat Warna Kuning Goethite (α-FeOOH) berbahan Pasir Besi Alam

Athahirah,

Aini

2022

Periodic

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Goethite yellow dye (α-FeOOH) is an inorganic synthesis product with natural iron sand as the basic material. Pure natural iron sand contains magnetic particles oxidized to produce Fe 3+ ions which can be used as starting materials for FeOOH compounds. Synthesis was carried out by coprecipitation method with NaHCO 3 as coprecipitation agent. The variation of the mass of iron sand is aimed at knowing the optimal comparison of the use of iron sand, H 2 SO 4 , and HNO 3 . The optimum ratio obtained between the mass of iron sand, H 2 SO 4 and HNO 3 is 3:10:10. Variations of pH synthesis were carried out at pH 2, 3, 4, 5 and 6 to produce a yellow color with different brightness. The pH causes the yellow color to get darker. The brightest yellow color was obtained at pH 2 synthesis. Characterization was carried out with DRUV-Vis to see the absorption wavelength, FTIR spectrophotometer to see the product's functional groups and XRD to see the crystal structure of the product.

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Effect of Boric Oxide Compounds on the Physical Properties and Structure of “Huta Ginjang” Quartz Sand-Based Glass Medium

Panggabean,

Sihombing,

Rajagukguk

et al. 2024

J. Phys.: Conf. Ser.

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Effect of boric oxide compounds on the physical properties and structure of “huta ginjang” quartz sand-based glass medium from the compound composition of (x) quartz sand - (60-x) B2O3 - 10BaO - 30Na2O where x = 0; 2.5; 5; 10; (mol%). All compounds were produced in powder form with a total mass of 15 grams using melting technology at 1300°C. To determine the quality of the glass material, measurements and calculations of physical properties of glass such as molar massa, molar volume, density and others were carried out. Characterization is done using XRD, FTIR, and UV-Vis-NIR. XRD results show the structure of the glass by adding quartz sand is amorphous. As the concentration of quartz sand increases, the density of the sample increases slowly, while the molar volume decreases slowly. There are 4 peak positions in the FTIR spectrum of borate glass which are located in the absorption regions of 822 cm-1, 950cm-1, 1335 cm-1, and 1665 cm-1 from wavelengths 700-4000. The glass material absorption spectrum has sharp peaks of light absorption at wavelengths of 350-1100 nm.

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Sintesis Nanopartikel Magnet Zn-Ferrite (Znfe2o4) Berbahan Dasar Pasir Besi Menggunakan Metode Kopresipitasi

Cited by 3 publications

References 1 publication

Sintesis dan Karakterisasi Pigmen Merah Hematit (α-Fe2O3) dari Pasir Besi Kabupaten Sijunjung, Sumatera Barat, Indonesia

Sintesis dan Karakterisasi Pigmen Merah Hematit (α-Fe2O3) dari Pasir Besi Kabupaten Sijunjung, Sumatera Barat, Indonesia

Sintesis dan Karakterisasi Zat Warna Kuning Goethite (α-FeOOH) berbahan Pasir Besi Alam

Effect of Boric Oxide Compounds on the Physical Properties and Structure of “Huta Ginjang” Quartz Sand-Based Glass Medium

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