在 (H+) 和 (Na+) 形式中使用弱酸交换器去除Amberlite IRC-50
Afaf Amara-Rekkab1, Mohamed Amine Didi2
1. amarafaf@yahoo.fr.
Acta chimica Slovenica
|August 21, 2025
概括
这项研究表明Amberlite IRC-50有效地从水溶液中去除 (III) 离子. 树脂的形式显示出比形式的回收性能略好.
科学领域:
- * 离子交换色谱
- * 稀土元素的分离
- * 环境整治
背景情况:
- 从水溶液中去除对于环境保护和资源回收至关重要.
- * 像Amberlite IRC-50这样的弱宏的离子交换器具有选择性离子吸附的潜力.
- 了解吸附动力学和热力学是优化分离过程的关键.
研究的目的:
- * 为了研究的吸附 (H+) 和 (Na+) 两种形式的Amberlite IRC-50.
- * 为了确定的最佳条件和回收
- * 评估控制吸附过程的动力学和热力学参数.
主要方法:
- * 进行了批量吸附实验,使用不同的pH值,时间,温度,初始度和树脂量.
- * 用薄膜和颗粒扩散模型来分析吸附动力学.
- * 计算了热力学参数 (ΔH°, ΔS°, ΔG°),以了解吸附机制.
主要成果:
- * 与 (H+) 形式相比,Amberlite IRC-50 (Na+) 的吸附能力更高.
- * 确定了最佳条件:pH9.3,1 mmol/L,0.15 g树脂,每个树脂形式的特定最佳时间.
- * 在初始度为1 mmol/ l时,平衡提取达到22.2 mg/ g (H+) 和21.9 mg/ g (Na+) 的形式.
结论:
- * 安伯莱特IRC-50是一种有效的弱阴离子交换树脂,用于 (III) 的去除和回收.
- * 吸附过程受pH和树脂形式的影响, (Na+) 形式的性能略高.
- 优化策略适用于工业规模的三除去加工.
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