Iron (III) oxide fabrication from natural clay with reference to phase transformation γ- → α-Fe2O3

Šaponjić, Aleksandra; Saponjic, Djordje; Nikolić, Violeta N.; Milošević, Maja M.; Marinović‐Cincović, Milena; Gyoshev, Stanislav; Vuković, Marina; Kokunešoski, Maja

doi:10.2298/sos1702197s

Cited by 3 publications

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“…Organic impurities from sedimentary minerals have been removed by heat treatment at 600 o C for 2 h in air. Thermal treatment has also been found to be effective for removing Fe to leach iron [25]. After thermal treatment, in an aqueous solution of 0.5 M HCl (p.a.…”

Section: Materials and Experimental Procedures 21 Chemicals And Purif...mentioning

confidence: 99%

“…The main constituent of diatomite and clay is SiO 2 , so these sediments are often used for the synthesis of SiO 2 based ceramics [22][23][24][25][26]. Commercially used diatomite is generally produced from natural diatomite by calcination processing at about 900 o C. Clay minerals can be chemically treated to activate its pore structure and/or the surface of the solid.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of sedimentary minerals from Kolubara mining basin, Serbia, with the determination of natural radioactivity

et al. 2022

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Diatomite (diatomaceous earth) and clay minerals deposits from the mining basin Kolubara, Serbia, are natural materials with high economic potential in many fields. As received and treated materials, diatomite and clay were characterized using X-ray diffraction, mercury intrusion porosimetry, particle size distribution, scanning electron microscopy, and Fourier-transform infrared spectroscopy. Activity concentrations for natural radionuclides 40K, 226Ra and 232Th and anthropogenic radionuclide 137Cs in diatomite and clay were determined by gamma spectrometry with HPGe detector. For diatomite and clay, the mean activity concentrations of 226Ra, 232Th and 40K were found to be 9, 26 and 173 Bq kg-1 and 19, 26 and 470 Bq kg-1, respectively. In the present study was to show that these materials are environmentally safe for further use in many fields.

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Section: Materials and Experimental Procedures 21 Chemicals And Purif...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characterization of sedimentary minerals from Kolubara mining basin, Serbia, with the determination of natural radioactivity

et al. 2022

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“…В табл. 1 представлены химические составы исследуемых глин, определенные по методикам силикатного анализа [11].…”

Section: экспериментальная частьunclassified

Инфракрасная Спектроскопия Как Метод Определения Структурных Откликов Природных Глин На Свч-Воздействие

Chetverikova

Kanygina

Alpysbaeva

et al. 2019

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Методом ИК-спектроскопии изучены структурные отклики частиц монтмориллонитовой и каолинитовой глин месторождений Оренбургской области на СВЧ-воздействие. Обработку проб в течение 10 минут проводили в поле магнетрона мощностью 750 Вт в воздушной и влажной средах. Спектры получены с помощью ИК-Фурье спектрометра в диапазоне длин волн 4000–400 cм-1. Установлено, что в монтмориллонитовой глине количество доминирующих связей в тетраэдре SiO4 снижается в 1.5 раза при обработке в сухом воздухе и в 1.8 раза – во влажном. В глине, содержащей каолинит, все типы связей активно разрушаются под воздействием СВЧ-поля. ИСТОЧНИК ФИНАНСИРОВАНИЯРабота выполнена при финансовой поддержке РФФИ и правительства Оренбургской области в рамках научного проекта № 19-43-560001 р_а «Физико-химические принципы процессов СВЧ-консолидации каолинитов». REFERENCES Domashevskaya, E. P., Builov, N. S., Lukin, A. N. Sitnikov A. V. IR spectroscopic study of interatomic interaction in [(CoFeB)60C40/SiO2]200 and [(CoFeB)34(SiO2)66/C]46 multilayer nanostructures with metal-containing composite layers. Neorganicheskie materialy [Inorganic Materials], 2018, v. 54(9), pp. 140−146 https://doi.org/10.1134/S002016851802005X Chetverikova, A. G., Maryakhina V. S. Studies of polymineral clay containing three-layer aluminosilica tes by physical methods. Vestnik Orenburgskogo gosudar stvennogo universiteta, 2015, no. 1, pp. 250−255. (in Russ.) Chetverikova A. G., Filyak M. M., Kanygina O. N. Evolution of phase morphology in dispersed clay systems under the microwave irradiation. Ceramica, 2018, v. 64(371), pp. 367−372. https://doi.org/10.1590/0366-69132018643712354 Filyak M. M., Chetverikova A. G., Kanygina O. N., Bagdasaryan L. S. Fractal formalism as applied to the analysis of the microwave modifi cation of disperse systems. Kondensirovannye sredy i mezhfaznye granitsy [Condensed Matter and Interphases], 2016, v. 18(4), pp. 578−585. URL: https://journals.vsu.ru/kcmf/article/view/168/94 (in Russ.) Kanygina O. N., Filyak M. M., Chetverikova A. G. Microwave-Induced Phase Transformations of Natural Clay in Air and Humid Media. Neorganicheskie materially [Inorganic Materials], 2018, v. 54(9), pp. 904–909. https://doi.org/10.1134/S0020168518090042 Yavna V. A., Kasprzhitskii A. S., Lazorenko G. I., Kochur A. G. Study of IR spectra of a polymineral natural association of phyllosilicate minerals. Optics and Spectroscopy, 2015, v. 118(4), pp. 526−536. https://doi.org/10.7868/S0030403415040224 Chetverikova A. G., Kanygina O. N., Filyak M. M., Savinkova E. S. Physical optics methods of recording weak structural responses of dispersed clay systems to the effect of microwave radiation. Measurement Techniques, 2018, v. 60(1)1, pp. 1109−1115. https://doi.org/10.1007/s11018-018-1326-4 Stevenson C. M., Gurnick M. Structural collapse in kaolinite, montmorillonite and illite clay and its role in the ceramic rehydroxylation dating of low-fi red earthenware. Journal of Archaeological Science, 2016, v. 69, pp. 54−63. https://doi.org/10.1016/j.jas.2016.03.004 De Oliveira C. I. R., Rocha M. C. G., Da Silva A. L. N., Bertolino L. C. Characterization of bentonite clays from Cubati, Paraíba (Northeast of Brazil). Ceramica, 2016, vol. 62, Iss. 363, pp. 272−277. https://doi.org/10.1590/0366-69132016623631970 Plyusnina, I. I. Infrakrasnye spektry mineralov [Infrared spectra of minerals]. Moscow, Moscow University Publ., 1976, 190 p. (in Russ.) ISO 11464:2006 Soil quality – Pretreatment of samples for physico-chemical analysis, ISO STANDARD, 2006, 11 p. Šaponjić A., Šaponjić Đ., Nikolić V, Milošević M., Marinović-Cincović M., Gyoshev S., Vuković M., Kokunešoski M. Iron (III) oxide fabrication from natural clay with reference to phase transformation g- →a-Fe2O3 // Science of Sintering, 2017, v. 49(2), pp. 197–205. https://doi.org/10.2298/SOS1702197S Kool A., Thakur P., Bagchi B., Hoque N.A., Das S. Mechanical, dielectric and photoluminescence properties of alumina-mullite composite derived from natural Ganges clay. Applied Clay Science, v. 114, 2015, pp. 349−358. https://doi.org/10.1016/j.clay.2015.06.021 Stack K. M., Milliken R. E. Modeling near-infrared refl ectance spectra of clay and sulfate mixtures and implications for Mars. Icarus, v. 250, 2015, pp. 332−356. https://doi.org/10.1016/j.icarus.2014.12.009 Anadгo P., Pajolli I. L. R., Hildebrando E. A., Wiebeck H. Preparation and characterization of carbon/montmorillonite composites and nanocomposites from waste bleaching sodium montmorillonite clay. Advanced Powder Technology, 2014, v. 25(3), pp. 926−932. https://doi.org/10.1016/j.apt.2014.01.010 Lazorenko G. I., Kasprzhitskii A. S., Yavna V. A. Application of IR spectroscope to determine mechanical properties of polycrystalline materials based on layered aluminosilicate . Kondensirovannye sredy i mezhfaznye granitsy [Condensed Matter and Interphases], 2014, vol. 16, no. 4, pp. 479−485. URL: http://www.kcmf. vsu.ru/resources/t_16_4_2014_011.pdf (in Russ.)

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Organic carbon preservation in wetlands: Iron oxide protection vs. thermodynamic limitation

Sun

et al. 2023

Water Research

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Iron (III) oxide fabrication from natural clay with reference to phase transformation γ- → α-Fe2O3

Cited by 3 publications

References 37 publications

Characterization of sedimentary minerals from Kolubara mining basin, Serbia, with the determination of natural radioactivity

Characterization of sedimentary minerals from Kolubara mining basin, Serbia, with the determination of natural radioactivity

Инфракрасная Спектроскопия Как Метод Определения Структурных Откликов Природных Глин На Свч-Воздействие

Organic carbon preservation in wetlands: Iron oxide protection vs. thermodynamic limitation

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