Iron oxide nanopowder synthesized by electroerosion dispersion (EED) – Properties and potential for microwave applications

Halbedel, B.; Prikhna, T. A.; Quiroz, Pamela; Schawohl, J.; Kups, Thomas; Monastyrov, Mykola

doi:10.1016/j.cap.2018.08.006

Cited by 10 publications

(6 citation statements)

References 13 publications

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“…The leaching of nickel ions depends on the composition and structure of the sediment obtained, principally on the presence of the nickel limonite phase (FeNi)O(OH). It is known [21] this phase is unstable in an aqueous solution: it is the quantitative content of this phase that can define the magnitude of leaching nickel ions. The greater the content of this phase is, the higher the value of the nickel ions concentrations after their leaching.…”

Section: Discussion Of Results From Studying the Processing Of Galvanmentioning

confidence: 99%

Development of ferritization processing of galvanic waste involving the energysaving electromagnetic pulse activation of the process

Kochetov

Prikhna

Samchenko

et al. 2019

EEJET

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Section: Discussion Of Results From Studying the Processing Of Galvanmentioning

confidence: 99%

Development of ferritization processing of galvanic waste involving the energysaving electromagnetic pulse activation of the process

Kochetov

Prikhna

Samchenko

et al. 2019

EEJET

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“…Artificial magnetite 19 was produced by electro-erosive dispersion (EED) in plasma of sawdust from St3 or St40 steel (ISM NASU, Ukraine), American analogues of M1017 and 1040 steels. The phase composition of the nanopowder is as follows: Fe 3 O 4 -82.1%; FeO -6.2%; Fe-bcc -5.2%: FeO(OH) -6.4% (Figure 1).…”

Section: Materials and Methods Of Researchmentioning

confidence: 99%

Magnetite-ferrocyanide-copper sorbents for recovery of cesium ions from low-activity liquid radioactive waters

Sergii,

Oksana,

Lyudmila

et al. 2024

MSEIJ

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The article is devoted to the development of nanoscale sorbents based on copper ferrocyanide and magnetites for the removal of cesium, strontium, and heavy metal ions in their simultaneous presence in a multicomponent two-phase low-level radioactive solution containing complexing agents and surfactants. It they noted that the highest values of cesium ion removal from low-level radioactive water - 99.96% and 99.62% - are obtained with sorbents based on 100% copper ferrocyanide and a mixture of copper ferrocyanide and industrial magnetite in a ratio of 2 to 1. The efficiency of the sorbents in terms of the distribution coefficient is 2394 and 1589.7 ml/g, which ensures the purification of radioactive water from trace concentrations of cesium ions to values of 2394 and 265.11. These sorbents provide water purification to values less than 2 Bq/cm3, which is typical for 1-4 classes of water quality in terms of radiation safety of groundwater and surface water as sources of centralised drinking water supply. It is noted that sorption of cesium ions on copper ferrocyanide and magnetite is carried out in the presence of water molecules and hydroxo groups. It is shown that artificial magnetite in its pure form exceeds the sorption capacity of industrial magnetite. This is due to the difference in the phase composition and particle size of the crystals. The results obtained will be use as components of the technological process in the Plasma-Sorb technology developed at the State Institution "The Institute of Environmental Geochemistry" of the National Academy of Sciences of Ukraine for the treatment of low- and intermediate-level radioactive water from Ukrainian nuclear power plants.

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“…Одним з таких низько вартісних методів отримання наносорбентів є синтез шляхом електроерозійного диспергування (ЕЕД) [7,8]. Технологія ЕЕД дозволяє переробити в порошок будь-які електропровідні відходи (металеві, тверді сплави, важкі сплави, гранули тощо).…”

Section: вступunclassified

Disposal of used nanosorbents obtained during wastewater purification from Ni2+ ions in powder paint materials

Sosedko¹,

Kochetov²,

Samchenko³

et al. 2022

PWSH

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The prospects of increasing the level of environmental safety of industrial enterprises as a result of the implementation of the latest sorption technologies for wastewater treatment are considered. An analysis of the effectiveness of the existing methods of sorption water purification, which contain compounds of heavy metals, was carried out. Highly effective magnetic sorbents were obtained by electroerosion dispersion, which contains polyvalent iron oxides. The effect of the method of introducing the sorbent into wastewater on the degree of its purification was investigated. The most effective results in water purification were achieved with the use of freshly obtained powder of electroerosion dispersion of iron in water in the form of a suspension, which allows to achieve a high degree of water purification from zinc ions - more than 99%. Such water meets the standards for washing parts in galvanic production with regard to the content of nickel ions. The expediency of recycling spent nano-sorbents in the composition of powder paint and varnish materials is shown. When a coating chemically stable in water treatment waste, which has ferromagnetic properties, is included in the composition, in quantity15% by weight high corrosion resistance of the coating is ensured and shielding of electromagnetic radiation increases approximately 3 times compared to the standard sample. The use of research results at enterprises will prevent environmental pollution with toxic substances, change outdated production technologies, ensure efficient and rational use of water, raw materials and energy in the industrial production system.

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Iron oxide nanopowder synthesized by electroerosion dispersion (EED) – Properties and potential for microwave applications

Cited by 10 publications

References 13 publications

Development of ferritization processing of galvanic waste involving the energysaving electromagnetic pulse activation of the process

Development of ferritization processing of galvanic waste involving the energysaving electromagnetic pulse activation of the process

Magnetite-ferrocyanide-copper sorbents for recovery of cesium ions from low-activity liquid radioactive waters

Disposal of used nanosorbents obtained during wastewater purification from Ni2+ ions in powder paint materials

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Iron oxide nanopowder synthesized by electroerosion dispersion (EED) – Properties and potential for microwave applications

Cited by 10 publications

References 13 publications

Development of ferritization processing of galvanic waste involving the energy­saving electromagnetic pulse activation of the process

Development of ferritization processing of galvanic waste involving the energy­saving electromagnetic pulse activation of the process

Magnetite-ferrocyanide-copper sorbents for recovery of cesium ions from low-activity liquid radioactive waters

Disposal of used nanosorbents obtained during wastewater purification from Ni2+ ions in powder paint materials

Contact Info

Product

Resources

About

Development of ferritization processing of galvanic waste involving the energysaving electromagnetic pulse activation of the process

Development of ferritization processing of galvanic waste involving the energysaving electromagnetic pulse activation of the process