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低度Pd与Pd-Pt共存系统的快速分离:蓝组的单体特异性亲和力

Meng Liu¹, Yuxuan Du¹, Yu Liu¹

¹Yanshan Earth Critical Zone and Surface Fluxes Research Station, University of Chinese Academy of Sciences, Beijing 100049, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.

Journal of colloid and interface science

|February 16, 2024

概括

六二酸盐迅速而有选择地从 (Pt) 混合物中捕获 (Pd). 这种吸附剂设计可以有效地分离贵金属,这对于回收和回收过程至关重要.

科学领域:

材料科学材料科学材料科学
无机化学无机化学
环境科学环境科学

背景情况:

将低度的 (Pd) 与 (Pt) 分离是具有挑战性的,因为它们具有类似的连接体替代行为.
现有的吸附剂缺乏特异性,阻碍了在共存系统中有效分离Pd和Pt.
开发具有单体特异性亲和力的吸附剂对于选择性贵金属回收至关重要.

研究的目的:

合成一种具有单体特异性亲和力的新型吸附剂,用于选择性捕获.
研究从Pd-Pt系统中选择性吸附的机制.
评估开发的吸附剂的效率,用于实际的贵金属回收.

主要方法:

通过共同沉合成六酸 (MnHCF).
使用Pd-Pt共存系统进行选择性吸附实验.
谱分析和密度函数理论 (DFT) 计算以阐明相互作用机制.

主要成果:

在5分钟内,MnHCF从10ppm的Pd-Pt系统中快速选择性地捕获了90.30%的Pd.
DFT计算和光谱数据证实了MnHCF的蓝色组与Pd之间的强烈协调相互作用.
由于MnHCF的蓝色基团无法与Pt复合体中的配体发生反应或替代,因此MnHCF显示不吸附Pt.

结论:

MnHCF对Pd (II) 捕获具有很高的灵敏度和特异性,可以有效地分离Pd-Pt.
在MnHCF中,蓝基的单体特异性亲和力是选择性吸附的关键.
这项研究将MnHCF作为一种有前途的吸收剂,用于金组金属的回收和回收.

关键词:

锡亚诺集团的公司.直接协调直接协调单体特异性亲和力单体特异性亲和力在 Pd 找回回收.Pd-Pt分离方式

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