Influence of the modification process on the properties of AlOOH nanofibers

Gryaznova, Elena N.; Shiyan, Ludmila N.; Yavorovskii, N. A.; Коробочкин, В. В.

doi:10.1134/s1070427213030129

Cited by 8 publications

(7 citation statements)

References 1 publication

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“…В работе [23] описаны преимущества и недостатки основных методов их получения. Нами выбран метод окисления нанопорошка алюминия, полученного методом электрического взрыва проводника (ЭВП) в аргоне, водой при постоянной температуре в диапазоне от 60 до 75 °С, по методике, описанной в [24]. Морфологические характеристики сорбента исследовали методом просвечивающей электронной микроскопии с использованием электронного микроскопа JEM-2100F (JEOL, Япония).…”

Section: экспериментальная частьunclassified

Sorption Purification of Model Solutions from Iron and Silicon Ions Using Aluminum Oxyhydroxide

Machekhina,

Gryaznova,

Merinova

et al. 2022

Chem

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The sorption processes of iron(III) and silicon ions from a model solution have been investi-gated using nanofibrous aluminum oxyhydroxide as a sorbent, obtained by oxidizing aluminum powder with water at a constant temperature in the range from 60 to 75 °C; its surface area is 196.16 m2/g, the pore diameters are from 2 to 15 nm, and the lengths are up to 1 μm. Aluminum powder was obtained by electric explosion of a conductor in argon. The adsorption processes have been studied for iron and silicon ions on aluminum oxyhydroxide and activated carbon from a model solution containing iron(III) ions, silicon, and organic substances of humic origin. The degrees of extraction of iron and silicon ions have been 82% and 41%, respectively, for the aluminum oxyhydroxide sorbent, at the initial concentration of iron 6.7 mg/L and 25.6 mg/L of silicon. For activated carbon, these have been 25% and 9% at the same weight of the sorbent sample. The sorption time is 4 hours. The value of the maximum sorption capacity of aluminum oxyhydroxide with respect to iron ions is 10 mg/g, and 38 mg/g for silicon ions from the model solution. The nanofibrous aluminum oxyhydroxide can be used at the post-treatment stage to remove iron associated with organosilicon compounds from groundwater, where iron substances are present in the colloid form and their concentration does not exceed 2 mg/L and the concentration of silicon does not exceed 12.4 mg/L, with organic substances up to 6.2 mg/L.

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Section: экспериментальная частьunclassified

Sorption Purification of Model Solutions from Iron and Silicon Ions Using Aluminum Oxyhydroxide

Machekhina,

Gryaznova,

Merinova

et al. 2022

Chem

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“…Difficulty of tungsten and molybdenum superfine particles obtaining is associated with their extremely high melting and boiling point. Tungsten and molybdenum nanopowders can be produced by using of plasma [7,8] nevertheless EEW is the most preferable metal nanopowder production method in consideration of continuously update in Tomsk Polytechnic University EEW technology [9,10,11]. Using nanoparticles of refractory metals in self-propagating high-temperature synthesis (SHS) is crucial for obtaining of nanostructured sulfides.…”

Section: Introductionmentioning

confidence: 99%

Two-Step Synthesis of Tungsten and Molybdenum Disulfides

Irtegov

Machekhina

et al. 2016

KEM

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Efficient two-step technique of tungsten and molybdenum disulfides obtaining from metal nanopowders produced by EEW and elementary sulphur is described. Tungsten and molybdenum nanopowders surface area dependence on wire length is studied. Features of metal and sulphur combustion process are discussed. It is determined sulphur excess in reagents 15 wt.% results in mono-phase metal disulfide formation with small free sulphur concentration in reaction products.

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“…However,the methods of preparing catalysts are quite complex. In our early study [5] the application of its modification in the preparation method of the aluminum oxyhydroxide leads to phase and structural changeswas represented. The manganese sulfate (II) was used as a modifier by the several reasons:…”

Section: Introductionmentioning

confidence: 99%

Developing Nanomaterials with Given Properties Based on Aluminum Oxyhydroxide

Gryaznova

Shiyan

Irtegov

2016

KEM

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This paper reports about the method of modified nanomaterials. The aluminum oxyhydroxide was modified by manganese ions (II) during the synthesis. It was shown that modified aluminum oxyhydroxide has new function properties such as catalytic properties. It was shown that the modified aluminum oxyhydroxide with the high concentration of manganese ions (II) could be used in the reaction of the oxidation of methane.

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Influence of the modification process on the properties of AlOOH nanofibers

Cited by 8 publications

References 1 publication

Sorption Purification of Model Solutions from Iron and Silicon Ions Using Aluminum Oxyhydroxide

Sorption Purification of Model Solutions from Iron and Silicon Ions Using Aluminum Oxyhydroxide

Two-Step Synthesis of Tungsten and Molybdenum Disulfides

Developing Nanomaterials with Given Properties Based on Aluminum Oxyhydroxide

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