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A composite material, prepared by mixing clay and pumpkin seedcake, was developed to remove Rhodamine B (RhB) dye. Its effectiveness was evaluated through batch tests. The highest removal efficiency of 84%, was observed at a pH of 10, adsorbent dose of 1 g/L with reaction time of 60 min and an initial RhB concentration of 50 mg/L. The experimental results closely aligned with the pseudo-second-order kinetic model and the Temkin isotherm model, indicating that the adsorption process is heterogeneous and predominantly driven by chemisorption.

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Removal of Rhodamine B by Clay-Pumpkin Seedcake Composite

  • 会议论文

  • 发表日期：

    2025年

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  • Shobha Rawat,
  • M. Mansoor Ahammed

摘要

A composite material, prepared by mixing clay and pumpkin seedcake, was developed to remove Rhodamine B (RhB) dye. Its effectiveness was evaluated through batch tests. The highest removal efficiency of 84%, was observed at a pH of 10, adsorbent dose of 1 g/L with reaction time of 60 min and an initial RhB concentration of 50 mg/L. The experimental results closely aligned with the pseudo-second-order kinetic model and the Temkin isotherm model, indicating that the adsorption process is heterogeneous and predominantly driven by chemisorption.