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One of the methods used to tackle pollution problems is the development of efficient materials that can act as adsorbents or filters to remove organic pollutants from aqueous solutions. In the present work, a new monolithic zeolite chitosan hydrogel (ZCS) has been synthesized by freeze–thaw technique. FT-IR spectroscopy, SEM, and XRD analysis have characterized the synthesized hydrogel, the data confirmed that ZCS is porous, composed of folded sheets with zeolite particles on the surface of the sheets. The water uptake percentage by ZCS (acid and base treated samples) was found to be in the range 84–95%. Preliminary adsorption studies showed that ZCS is efficient adsorbent to remove congo red dye, and with moderate efficiency for the elimination of the colour methylene blue in aqueous solutions.

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Development of New Monolithic Zeolite Chitosan Hydrogel with Preliminary Adsorption Studies to Remove Organic Dyes from Aqueous Solutions

  • 会议论文

  • 发表日期：

    2025年

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  • Ghassan Abbas Alwan,
  • Hamida Idan Salman,
  • Asim A. Balakit

摘要

One of the methods used to tackle pollution problems is the development of efficient materials that can act as adsorbents or filters to remove organic pollutants from aqueous solutions. In the present work, a new monolithic zeolite chitosan hydrogel (ZCS) has been synthesized by freeze–thaw technique. FT-IR spectroscopy, SEM, and XRD analysis have characterized the synthesized hydrogel, the data confirmed that ZCS is porous, composed of folded sheets with zeolite particles on the surface of the sheets. The water uptake percentage by ZCS (acid and base treated samples) was found to be in the range 84–95%. Preliminary adsorption studies showed that ZCS is efficient adsorbent to remove congo red dye, and with moderate efficiency for the elimination of the colour methylene blue in aqueous solutions.