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<p>This study presents the fabrication and characterization of a novel organic-inorganic composite membrane in which Zirconium carbonate (ZC) serves as the inorganic material, while cellulose acetate (CA) act as the continuous binding polymer. The hybrid membrane was developed via a solvent-free direct compression under 8-ton pressure, aiming to enhance mechanical strength, chemical stability, and electro-transport properties. Electrochemical performance was evaluated by measuring membrane potential using monovalent electrolytes across varying concentration gradients. The membrane exhibited cation-selective behavior, as evidenced by positive membrane potentials and a trend following K⁺ &gt; Na⁺ &gt; Li⁺, in line with the relative ionic mobilities. Ion exchange capacity (IEC = 0.045 mmol g⁻¹), moisture content, and swelling behavior were also assessed, with results indicating the membrane’s stability and suitability for aqueous applications. The experimental membrane potential values showed strong consistency with theoretical predictions, validating the effectiveness of the developed composite. These findings highlight the promise of CA-ZC membranes for practical use in ion separation and water treatment technologies.</p>

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Material characterization and electro-transport of cellulose acetate (CA) based zirconium carbonate (ZC) composite membrane for water treatment technologies

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月2日

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  • Iram Khan,
  • Mohammad Mujahid Ali Khan,
  • Syyed Asad Ali,
  • Faizul Qamar,
  • Manoj Kumar

摘要

This study presents the fabrication and characterization of a novel organic-inorganic composite membrane in which Zirconium carbonate (ZC) serves as the inorganic material, while cellulose acetate (CA) act as the continuous binding polymer. The hybrid membrane was developed via a solvent-free direct compression under 8-ton pressure, aiming to enhance mechanical strength, chemical stability, and electro-transport properties. Electrochemical performance was evaluated by measuring membrane potential using monovalent electrolytes across varying concentration gradients. The membrane exhibited cation-selective behavior, as evidenced by positive membrane potentials and a trend following K⁺ > Na⁺ > Li⁺, in line with the relative ionic mobilities. Ion exchange capacity (IEC = 0.045 mmol g⁻¹), moisture content, and swelling behavior were also assessed, with results indicating the membrane’s stability and suitability for aqueous applications. The experimental membrane potential values showed strong consistency with theoretical predictions, validating the effectiveness of the developed composite. These findings highlight the promise of CA-ZC membranes for practical use in ion separation and water treatment technologies.