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Abstract <p>The paper presents the results of studies of the sorption properties of layered double hydroxide of the composition Mg<sub>4</sub>Al<sub>2</sub>(OH)<sub>12</sub>CO<sub>3</sub>⋅3H<sub>2</sub>O, obtained by the solid-phase interaction method, with respect to the <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11236_2025_9159_Article_IEq1.gif" Format="GIF" Height="21" Rendition="HTML" Resolution="72" Type="Linedraw" Width="42" /> </InlineMediaObject> <EquationSource Format="TEX">\({\text{PO}}_{4}^{{3 - }}\)</EquationSource> <!--TFCE2570041Maiorov-m1--> </InlineEquation> ion. It is found that the sorption process is most adequately described by the Langmuir monomolecular adsorption equation, and its kinetics is described by a pseudo-first-order equation. The activation energy of the process is determined, based on which is concluded that the process occurs in the diffusion region.</p>

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Kinetics of Phosphate Ion Sorption by Layered Double Magnesium Aluminum Hydroxide

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • D. V. Maiorov

摘要

Abstract

The paper presents the results of studies of the sorption properties of layered double hydroxide of the composition Mg4Al2(OH)12CO3⋅3H2O, obtained by the solid-phase interaction method, with respect to the \({\text{PO}}_{4}^{{3 - }}\) ion. It is found that the sorption process is most adequately described by the Langmuir monomolecular adsorption equation, and its kinetics is described by a pseudo-first-order equation. The activation energy of the process is determined, based on which is concluded that the process occurs in the diffusion region.