Synthesis and characterization of iron oxide pigments through the method of the forced hydrolysis of inorganic salts

Müller, Marcelo Marques Lopes; Villalba, Juan Carlo; Mariani, Filipe Quadros; Dalpasquale, Mariane; Lemos, Milena Zvolinski; Huila, Manuel Fernando Gonzalez; Anaissi, Fauze Jacó

doi:10.1016/j.dyepig.2015.04.026

Cited by 38 publications

(15 citation statements)

References 31 publications

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“…The highest peak is obtained at 2 around 21°. This result is in compliance with that of Muller and Garcia, which reported goethite exhibits highest peak intensity at 2 (21°) [10,12]. The difference on the diffraction pattern was observed on the products of 60˚C and 90˚C synthesis temperature, which display a smaller slight shift towards 2θ, compared to that synthesized at 70˚C and 80˚C with a larger slight shift towards 2θ.…”

Section: X-ray Diffractionsupporting

confidence: 91%

“…Figure 2 shows the colour of the obtained goethite pigment which is yellowish and turns darker with the increase in synthesis temperature. The colour of product at 90°C synthesis temperature is redder, as in the Muller's research which was obtained at identical synthesis temperature using Fe(NO3)3 precursor, producing pigment of red colour which indicates the presence of impurities hematite [12]. The difference in pigment colour is accounted to the presence of impurities [12], particle structure and particle size [7].…”

Section: Figure 1 X-ray Diffraction Pattern Of Goethite With Variatimentioning

confidence: 94%

“…Legodi and de Waal succeeded producing goethite with mill scale precursor [8]. Muller et al [12] carried out goethite synthesis at 60 o C that resulted in goethite with particle size of 0.36 μm. Meanwhile, goethite synthesis at 70°C produced particle size around 0.318 μm with octahedral structure.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Goethite (α-FeOOH) Pigment by Precipitation Method from Iron Lathe Waste

Khoiroh

Nuraini²,

Aini³

2018

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Lathe waste contains high iron content potential to be further processed into goethite pigment. The purpose of the research was to determine the effect of synthesis temperature on the structure, colour values, and morphology of goethite pigment. The synthesis was conducted with temperature variations of 60, 70, 80and 90°C. The XRD diffraction pattern shows that crystal structure of the product of all synthesis temperatures are goethite (α-Fe-OOH) with orthorhombic structure. The crystal size of the pigment ranges between 11.17 – 12.32 nm. Colour value analysis shows that product of 70°C synthesis temperature exhibits the highest lightness value about 40.5. Based on SEM-EDX imaging, the morphology of the samples is not uniform and forming agglomerates. Traces of impurities were detected, such as C and Na. Keywords: Iron lathe waste, goethite, temperature, precipitation

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Section: X-ray Diffractionsupporting

confidence: 91%

Section: Figure 1 X-ray Diffraction Pattern Of Goethite With Variatimentioning

confidence: 94%

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Synthesis of Goethite (α-FeOOH) Pigment by Precipitation Method from Iron Lathe Waste

Khoiroh

Nuraini²,

Aini³

2018

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“…In Fig. 4b, an example of the scattering Raman response of deep red areas is shown where, albeit the A 1g mode at about 220 cm −1 is not accessible through the portable device, the combined presence of bands at 293, 409 and 612 cm −1 indicates that hematite is responsible for the color in the deep red paints [22,23]. Near-FTIR revealed the molecular identification of the violet pigment.…”

Section: Deep Red and Violet Paintsmentioning

confidence: 99%

Disclosing Jackson Pollock’s palette in Alchemy (1947) by non-invasive spectroscopies

et al. 2016

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Alchemy (1947, Peggy Guggenheim Collection, Venice) is one of the most materic works by J. Pollock, whose palette is extensive, ranging from white to yellow, red, green, violet, blue, black, and silver. Each layer of color was laid on top of a previously dried one and effectively separated from the lower one forming a quite complex stratigraphy with colors intersecting each other. In this study, a non-invasive multi-technique method combining point analysis with Vis-NIR multispectral imaging has been exploited to give insights on the painting technique of the American abstract expressionist. The molecular identification of pigments, colorants and extenders contained in fifteen different paints has been achieved combining key spectral markers from elemental, electronic and vibrational spectroscopies. For those colors exhibiting similar hues but different chemical compositions, a mapping procedure based on false color rendering, obtained by properly mixing three spectral planes from the Vis-NIR multispectral imaging set, has been successfully applied. Relevant for the understanding of the evolution of Pollock's drip technique is the identification of both traditional oil-based paints and oil-modified alkyd media. Point analysis by reflection FTIR scattered throughout the painting enabled mapping the distinct use of traditional and new binding media among painted, squeezed and dripped paints.

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“…Uniaxial pressing of the pellets was carried out in a Vonder hydraulic press with a pressure of 75 MPa applied for 2 min. The procedures used for pigments application were adapted from reference Vishnu et al 12 and Müller et al 13 .…”

Section: Application Of Pigments In Ceramics Enamels Paints and Polymentioning

confidence: 99%

Synthesis of Brown Inorganic Pigments with Spinel Structure from the Incorporation of Spent Alkaline Batteries

et al. 2020

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In this work, inorganic pigments were synthesized by solid state reaction, from the incorporation of components of exhausted alkaline batteries. For this, after disassembling the batteries, the components were subjected to water leaching, milling and heat treatment at high temperatures with an addition of 33% (in mol) commercial or recovered from own alkaline batteries anodes zinc oxide. The obtained pigments were characterized by X-ray diffractometry, scanning electron microscopy, laser diffraction particle size, and UV-Vis diffuse reflectance spectroscopy. It was concluded that incorporation of the components of batteries generally yielded brown pigments with a structure of the spinel type ZnMn 2 O 4. SEM and particle size distribution analyses show that the addition of ZnO leads to a reduction in average grain size of the powders. The pigments when applied to color ceramic enamels, polymers and paints show good performance in the coloring of these products, with potential for commercial application.

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Synthesis and characterization of iron oxide pigments through the method of the forced hydrolysis of inorganic salts

Cited by 38 publications

References 31 publications

Synthesis of Goethite (α-FeOOH) Pigment by Precipitation Method from Iron Lathe Waste

Synthesis of Goethite (α-FeOOH) Pigment by Precipitation Method from Iron Lathe Waste

Disclosing Jackson Pollock’s palette in Alchemy (1947) by non-invasive spectroscopies

Synthesis of Brown Inorganic Pigments with Spinel Structure from the Incorporation of Spent Alkaline Batteries

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