采矿用于采矿溶液:评估用于稀土元素分离的结合
Farid F Khoury1, Bradley S Heater2, Daniel R Marzolf2
1Department of Chemical Engineering, Columbia University New York NY 10027 USA sbanta@columbia.edu.
Chemical science
|June 13, 2025
概括
研究人员确定了一种新型,HEW5,通过模仿结合来选择性地结合稀土元素 (REEs). 这种生物启发的方法提供了一种更绿色,更有效的方法来分离绿色能源和电子产品的关键可再生能源.
科学领域:
- 生物化学和材料科学 材料科学
- 生物有机化学 生物有机化学
- 分离科学 分离科学
背景情况:
- 稀土元素对现代技术至关重要,包括绿色能源和电子产品.
- 传统的REE分离方法昂贵,能源密集,并产生大量的废物.
- REEs与离子有相似之处,使其能够与结合蛋白相互作用.
研究的目的:
- 识别和表征具有高亲和力对REE分离的结合.
- 为了研究结构和REE结合亲缘关系之间的关系.
- 开发一种新,高效,环保的 REE 分离技术.
主要方法:
- 对REE亲属性结域的生物信息选.
- 评估了七个具有不同几何形状的独特结合域.
- 在溶液和固定状态下对选定的亲和性和选择性测试.
- 使用HEW5进行单阶段分离的演示.
主要成果:
- 在结合环的电荷和REE亲和力之间发现了强烈的相关性,富含酸的环显示出更高的亲和力.
- 与相似的半径 (∼1 Å) 的REEs的结合亲和度最高.
- 固定HEW5对中间REEs具有很高的选择性,并且在分离和时达到>90%的纯度和产量.
- HEW5有效地从模拟的液流中去除了非REE离子.
结论:
- 高电荷,富含酸的可以有效地结合和分离REEs.
- 来自Nocardioides zeae*的HEW5是一种有前途的候选物,用于无化剂的REE分离.
- 这种生物启发的方法为传统的REE分离工艺提供了一个可持续的替代方案.
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