cpomaemКоррозия: защита материалов и методы исследованийTitle in englishИФХЭ РАН10.61852/2949-3412-2026-4-2-154-175cpomaem-154Research ArticleСтатьиИзучение и моделирование адсорбции железо (II) и фосфат- ионов на магнетите в слабокислых и слабощелочных средахStudy and modeling of iron (II) and phosphate ions adsorption on magnetiteightly acid and slightly alkaline environmentsКузинА. В.KuzinA. V.

Москва

Moscow

magistr87@yandex.ruКузнецовВ. В.KuznetsovV. V.

Москва

Moscow

magistr87@yandex.ruШелонцевВ. А.ShelontsevV. A.

Омск

Omsk

magistr87@yandex.ruЕлисееваЕ. А.EliseevaE. A.

Москва

Moscow

magistr87@yandex.ruБерезинаС. Л.BerezinaS. L.

Москва

Moscow

magistr87@yandex.ruСамадовА. С.SamadovA. S.

Душанбе

Dushanbe

magistr87@yandex.ruМосковский педагогический государственный университет; МГТУ им. Н.Э. БауманаРоссияMoscow Pedagogical State University; Bauman Moscow State Technical UniversityRussian FederationМГТУ им. Н.Э. БауманаРоссияBauman Moscow State Technical UniversityRussian FederationОмская гуманитарная академияРоссияOmsk Humanitarian AcademyRussian FederationТаджикский национальный университетТаджикистанTajik National UniversityTajikistan20262106202602154175Copyright © Кузин А.В., Кузнецов В.В., Шелонцев В.А., Елисеева Е.А., Березина С.Л., Самадов А.С., 20262026Кузин А.В., Кузнецов В.В., Шелонцев В.А., Елисеева Е.А., Березина С.Л., Самадов А.С.Kuzin A.V., Kuznetsov V.V., Shelontsev V.A., Eliseeva E.A., Berezina S.L., Samadov A.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.cpmrm.ru/jour/article/view/154

В результате проведенного моделирования адсорбции железо (II) и фосфат-ионов на поверхности оксида железа при различных значениях рН было показано, что двойной электрический слой (ДЭС), возникающий на границе раздела оксид железа/раствор электролита, оказывает существенное влияние на адсорбционные явления. Особенно велика роль величины концентрации ионов водорода и потенциала на границе раздела оксид железа/раствор электролита. При описании адсорбции, обращается внимание на необходимость учёта кислотно-основных равновесий, возникающий на границе раздела оксид железа/раствор электролита. Найдено, что закономерности адсорбционного поведения железо (II) и фосфат-ионов в каждом случаи описываются набором пяти равновесий, имеющих место на границе оксид железа/раствор электролита, которые соответствуют идеям трехслойной модели (Triplet layer model, TLM).

As a result of the modeling of the adsorption of iron (II) and phosphate ions on the surface of iron oxide at various pH values, it was shown that the double electric layer (DEL) that occurs at the iron oxide/electrolyte solution interface has a significant impact on adsorption phenomena. In particular, the role of the concentration of hydrogen ions and the potential at the iron oxide/electrolyte solution interface is particularly important. When describing adsorption, it is necessary to take into account the acid-base equilibria that occur at the iron oxide/electrolyte solution interface.

It has been found that the adsorption behavior of iron (II) and phosphate ions in each case is described by a set of five equilibria occurring at the iron oxide/electrolyte solution interface, which correspond to the ideas of the triplet layer model (TLM).

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The authors declare that there are no conflicts of interest present.