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Updated: Jul 31, 2026

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从酸性废水中快速有效地回收scandium,使用基于β-cyclodextrin的功能化共价有机聚合物

Ke Liu¹, Qin Shuai¹, Lijin Huang¹

¹State Key Laboratory of Geomicrobiology and Environmental Changes, Faculty of Materials Science and Chemistry, China University of Geosciences, No. 388, Lumo Road, Hongshan District, Wuhan 430074, P. R. China. huanglj@cug.edu.cn.

|August 19, 2025

概括

一种新的功能化共价有机聚合物β-HCCD有效地从酸性废水中回收离子 (Sc3+). 这种材料提供了高效率和快速吸附,对稀土元素 (REE) 恢复有希望.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
化学工程是化学工程的重要组成部分.

背景情况:

对稀土元素 (REEs) 的需求不断增长,需要有效的回收方法.
工业过程中的酸性废水对REE分离构成了挑战.
新型吸附剂的开发对于可持续的废弃物回收至关重要.

研究的目的:

合成一种具有成本效益的吸附剂,用于从酸性溶液中分离离子 (Sc3+).
为了评估合成材料的吸附性能和效率.
为了证明吸附剂在REE回收中的工业应用中的潜力.

主要方法:

使用β-环氧 (β-CD) 和六环氧三 (HCCP) 合成一种功能化共价有机聚合物 (β-HCCD).
吸附实验以确定广泛的pH范围内的Sc3+离子的效率,动力学和容量.
对吸附剂在直接应用于工业酸性废水中的性能进行评估.

主要成果:

β-HCCD在酸性溶液中 (pH 5~10^-5 M) 达到超过98%的Sc3+吸附效率.
在2分钟内观察到完全的Sc3+捕获,最大吸附能力为101.0mgg-1.
使用β-HCCD直接在没有预处理的工业酸性废水上实现了87%的Sc3+回收率.

结论:

合成的β-HCCD是一种高效和快速的吸附剂,用于从酸性废水中回收Sc3+.
它的成本效益,简单的合成和强大的性能使其成为工业废弃物回收的有希望的材料.
β-HCCD为解决对稀土元素日益增长的需求提供了一个可持续的解决方案.

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