响应面法优化凝胶型弱酸性树脂对铕(Ⅲ)的吸附性能
通过响应面法,对增强凝胶型弱酸性树脂(110-H)在水溶液中对稀土元素铕的吸附作用进行优化.实验表明在最佳条件下110-H对铕的吸附量(346.85 mg/g)令人满意,是目前对铕离子吸附量最高的材料之一.吸附过程拟合一级反应动力学和朗缪尔等温线模型,吸附热力学参数分别为△H=36.1 kJ/mol,AS=200 J/(mol·K).解吸实验表明110-H可以用浓度为0.1 mol/L的HCl溶液洗脱以实现再生.用红外光谱和扫描电镜技术对比树脂吸附金属离子前、后特征以分析其吸附机理....
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Veröffentlicht in: | 中国有色金属学报(英文版) 2015, Vol.25 (12), p.4207-4215 |
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creator | 陈婷 李斌 方磊 陈德睢 许文斌 熊春华 |
description | 通过响应面法,对增强凝胶型弱酸性树脂(110-H)在水溶液中对稀土元素铕的吸附作用进行优化.实验表明在最佳条件下110-H对铕的吸附量(346.85 mg/g)令人满意,是目前对铕离子吸附量最高的材料之一.吸附过程拟合一级反应动力学和朗缪尔等温线模型,吸附热力学参数分别为△H=36.1 kJ/mol,AS=200 J/(mol·K).解吸实验表明110-H可以用浓度为0.1 mol/L的HCl溶液洗脱以实现再生.用红外光谱和扫描电镜技术对比树脂吸附金属离子前、后特征以分析其吸附机理. |
doi_str_mv | 10.1016/S1003-6326(15)64071-7 |
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title | 响应面法优化凝胶型弱酸性树脂对铕(Ⅲ)的吸附性能 |
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