Synthesis and characterization of iron (III) oxide from natural iron sand of the south coastal area, Purworejo Central Java

Widodo, Rahmat Doni; Priyono, Priyono; Rusiyanto,; Anis, Samsudin; Ichwani, Achmad Arif; Setiawan, Beni; Fitriyana, Deni Fajar; Rochman, L

doi:10.1088/1742-6596/1444/1/012043

Cited by 12 publications

(5 citation statements)

References 19 publications

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“…Widayat et al ( 2019 ) have successfully obtained the best surface area and pore volume of Fe 2 O 3 at 700°C calcination temperature. Fatmaliana et al ( 2020 ) have also successfully obtained a 96.58% Fe 2 O 3 content using these methods, which was further supported by Widodo et al ( 2020 ) whom obtained 100% Fe 2 O 3 phase after calcination at 900°C temperature. In addition to its sustainability and cheap price, the utilization of iron sand is still limited to metal industries and buildings’ raw material (Ardiani et al 2020 ) that allows a room for further development.…”

Section: Introductionmentioning

confidence: 62%

Novel iron sand-derived α-Fe2O3/CaO2 bifunctional catalyst for waste cooking oil-based biodiesel production

Prameswari

Widayat

Buchori

et al. 2022

Environ Sci Pollut Res

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The main aim of this work was to develop a heterogeneous Fe 2 O 3 /CaO 2 bifunctional catalyst prepared from iron sand and 3 different CaO 2 sources (CaCO 3 , Ca (OH) 2 , and limestone) using wet impregnation and calcination methods for biodiesel production. The effects of different CaO 2 sources and Fe/Ca ratio in the catalyst were investigated to provide insight into the catalyst character and biodiesel yield. X-ray diffraction, X-ray fluorescence, and scanning electron microscopy analyses were used to characterize the catalyst. CaCO 3 was concluded as the best CaO 2 source, while the best Fe/Ca configuration was found to be 1:4, giving the highest biodiesel yield (97.0401%) with no diglycerides. Greater addition of Fe loading would result in an amorphous structure, and all catalysts were relatively crystalline. Fe was concluded to favor the esterification reaction and biodiesel formation, while CaO 2 was seen to favor the transesterification reaction and fatty acid methyl ester (FAME) formation. The catalyst mechanism was also established in this study, where esterification of free fatty acid (FFA) and glycerol took place on the acid site to produce diglyceride and transesterification of triglyceride by methanol occurred on the basic site.

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Section: Introductionmentioning

confidence: 62%

Novel iron sand-derived α-Fe2O3/CaO2 bifunctional catalyst for waste cooking oil-based biodiesel production

Prameswari

Widayat

Buchori

et al. 2022

Environ Sci Pollut Res

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“…Senyawa besi oksida dapat disintesis menggunakan bahan alam, yaitu pasir besi (Widodo et al, 2020) dan bijih besi (Muhammad et al, 2019). Selain itu sintesis besi oksida dapat menggunakan limbah besi bubut (Rahmawati et al, 2020), karat besi (Abid et al, 2021, dan red mud (Wang et al, 2020).…”

Section: Iunclassified

Ekstraksi dan Karakterisasi Senyawa Besi Oksida dari Batuan Vulkanik Pulau Ambon menggunakan Metode Kopresipitasi

Jaya,

Nggolaon,

Hattu

2024

JFU

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Senyawa besi oksida pada batuan vulkanik Pulau Ambon memiliki potensi untuk dimanfaatkan sebagai material maju di masa depan. Penelitian ini bertujuan untuk mengekstraksi senyawa besi oksida pada batuan vulkanik Pulau Ambon menggunakan metode kopresipitasi. Hasil penelitian menunjukkan senyawa besi oksida yang dihasilkan memiliki kemurnian dibawah 50%. Hal ini dikarenakan masih adanya beberapa senyawa oksida yang terdeteksi oleh instrumen X-Ray Fluorescence (XRF). Fasa mineral oksida yang terdeteksi oleh instrumen X-Ray Diffraction (XRD) adalah magnetit (Fe3O4), maghemit (𝛾-Fe2O3), dan hematit (𝛼-Fe2O3). Ukuran kristal dari hasil perhitungan persamaan Scherrer menghasilkan nilai rata-rata sebesar 13,732 nm. Dari hasil pengamatan Scanning Electron Microscope (SEM) menunjukkan adanya aglomerasi dengan bentuk permukaan yang bulat. Ukuran partikel yang dianalisis dari gambar SEM menggunakan software ImageJ menghasilkan nilai rata-rata sebesar 729,184 nm. Hasil ini menunjukkan metode kopresipitasi telah berhasil mempelajari senyawa besi oksida dari batuan vulkanik Pulau Ambon. Kedepannya senyawa besi oksida dari hasil ekstraksi dapat diaplikasikan sebagai material fotokatalis dan antimikroba.

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“…X-ray diffraction analysis showed ( Figure 2) showed the most intense reflections of hematite (α-Fe 2 O 3 ) [26][27][28] in all three pigments. Moreover, magnetite was detected in samples SP2 ( Figure 2b) and SP3 ( Figure 2c).…”

Section: Phase Composition Of Commercial Pigmentsmentioning

confidence: 99%

Characterization of Waste Sludge Pigment from Production of ZnCl2

et al. 2021

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This study is focused on the treatment of waste sludge from a zinc chloride production in order to prepare iron-rich pigments usable for a production of glazes. In galvanizing plants,, yellow waste sludge containing significant amount of ZnO, Cl, and Fe2O3, is formed. This raw waste sludge cannot be used as a pigment in glaze. Therefore, three methods of treating this material were proposed: a) washing with H2O, b) calcination at 180 °C and washing by H2O, and c) calcination at 900 °C and washing by H2O. These methods helped to reduce Zn and Cl content up to 97%. According to X-ray fluorescence analysis percentage of Fe2O3 increased from ~41% to ~98%. X-ray power diffraction analysis confirmed the formation of α-Fe2O3 (hematite) in the pigment prepared. Scanning electron microscopy with Energy dispersive X-ray analysis showed clusters of rounded particles, and also the change in size of particles after calcination was observed. Particle size, specific surface area, and density measurements together with thermogravimetric and differential thermal analyses were performed. Pigments prepared from the waste sludge were added to transparent glaze in amounts of 1, 5, 10, and 15 wt.%. Pigment-containing glazes were applied by spraying on fired ceramic tiles and then fired at 1060 °C. Color of glazes was determined by (Commission Internationale de l’Eclairage) CIE L*a*b* coordinates as colorless, light brown shades, brown-red, brown-yellow, and deep red-brown. Comparison with colors of glazes prepared using commercial pigments was also performed. Waste sludge can be used to prepare pigments and glazes containing pigments as an alternative to commercial products.

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Synthesis and characterization of iron (III) oxide from natural iron sand of the south coastal area, Purworejo Central Java

Cited by 12 publications

References 19 publications

Novel iron sand-derived α-Fe2O3/CaO2 bifunctional catalyst for waste cooking oil-based biodiesel production

Novel iron sand-derived α-Fe2O3/CaO2 bifunctional catalyst for waste cooking oil-based biodiesel production

Ekstraksi dan Karakterisasi Senyawa Besi Oksida dari Batuan Vulkanik Pulau Ambon menggunakan Metode Kopresipitasi

Characterization of Waste Sludge Pigment from Production of ZnCl2

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