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<p>This study evaluates Ce and N doped carbon quantum dots (CQDs) integrated into hydrogel matrices for neodymium (Nd) ion removal from aqueous solutions. CQDs were synthesized using Agaricus Bisporus mushrooms and incorporated into hydrogels with 1% mushroom loading, achieving a maximum adsorption capacity of 78.55&#xa0;mg/g under 180&#xa0;min, pH 5.0, 298&#xa0;K, and 1&#xa0;g/L solid-to-liquid ratio. Adsorption followed the Langmuir isotherm and pseudo-second-order kinetics, with thermodynamic analyses confirming a spontaneous and endothermic process. These findings demonstrate the effectiveness of Ce-N/CQDs@HG composites for environmental remediation.</p>

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Investigation of the usability of Ce- and N-doped hybrid carbon quantum dots for the removal of neodymium ions

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年4月17日

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  • Berkant Senturk,
  • Sabriye Yusan

摘要

This study evaluates Ce and N doped carbon quantum dots (CQDs) integrated into hydrogel matrices for neodymium (Nd) ion removal from aqueous solutions. CQDs were synthesized using Agaricus Bisporus mushrooms and incorporated into hydrogels with 1% mushroom loading, achieving a maximum adsorption capacity of 78.55 mg/g under 180 min, pH 5.0, 298 K, and 1 g/L solid-to-liquid ratio. Adsorption followed the Langmuir isotherm and pseudo-second-order kinetics, with thermodynamic analyses confirming a spontaneous and endothermic process. These findings demonstrate the effectiveness of Ce-N/CQDs@HG composites for environmental remediation.