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Abstract <p>The separation of mixtures derived from various dyes remains a significant challenge in the fields of chemical synthesis and pollutant treatment. In this paper, an arsenomolybdate (NH<sub>4</sub>)<sub>3</sub>[H(NiO<sub>6</sub>)Mo<sub>6</sub>O<sub>18</sub>(As<sub>3</sub>O<sub>3</sub>)<sub>2</sub>] (<b>I</b>) has been synthesized and characterized successfully. The structure of <b>I</b> was comprehensively analyzed using single crystal X-ray diffraction (SXRD), X-ray powder diffraction (XRPD), elemental analysis revealed that <b>I</b> is an ionic compound, comprising the anion [H(NiO<sub>6</sub>)Mo<sub>6</sub>O<sub>18</sub>(As<sub>3</sub>O<sub>3</sub>)<sub>2</sub>]<sup>3–</sup> and three counter cations <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\({\text{NH}}_{4}^{ + }\)</EquationSource> <!--CoChem2560100Ma-m1--> </InlineEquation>. Notably, <b>I</b> exhibits efficient and selective adsorption of Methylene Blue (MB), allowing its separation from other dyes. Furthermore, <b>I</b> exhibited good stability and recyclability in the adsorption of Methylene Blue, which was confirmed by five cycle tests. This research presents a viable strategy for the effective separation of Methylene Blue from dye mixtures.</p>

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An Anderson-Type Nickel-Substituted Arsenomolybdate for Rapid Adsorption and Selective Separation of Methylene Blue

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • L. J. Zhang,
  • X. T. Zhai,
  • Z. K. Li,
  • B. J. Zhao,
  • Z. H. Wang,
  • X. Ma,
  • Z. Q. Cai

摘要

Abstract

The separation of mixtures derived from various dyes remains a significant challenge in the fields of chemical synthesis and pollutant treatment. In this paper, an arsenomolybdate (NH4)3[H(NiO6)Mo6O18(As3O3)2] (I) has been synthesized and characterized successfully. The structure of I was comprehensively analyzed using single crystal X-ray diffraction (SXRD), X-ray powder diffraction (XRPD), elemental analysis revealed that I is an ionic compound, comprising the anion [H(NiO6)Mo6O18(As3O3)2]3– and three counter cations \({\text{NH}}_{4}^{ + }\) . Notably, I exhibits efficient and selective adsorption of Methylene Blue (MB), allowing its separation from other dyes. Furthermore, I exhibited good stability and recyclability in the adsorption of Methylene Blue, which was confirmed by five cycle tests. This research presents a viable strategy for the effective separation of Methylene Blue from dye mixtures.