功能化的聚合物纳米颗粒通过化作用回收伊特.
Pedro Adrián Martínez-Montoya1,2, Hugo Martínez-Gutiérrez3, Ángel de Jesús Morales-Ramírez1,4
1Instituto Politécnico Nacional, Escuela Superior de Ingeniería Química e Indústrias Extractivas, IPN-ESIQIE, Departamento de Ingeniería Metalúrgica, UPALM S/N Col. Lindavista, Gustavo A. Madero, Mexico City 07738, Mexico.
Polymers
|August 14, 2025
概括
聚甲基甲酸纳米颗粒功能化与烯酸,黄素和烟胺有效地回收了伊. 这种两步过程实现了90%的效率,证明了自发和性恢复机制.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 化学工程是化学工程的重要组成部分.
背景情况:
- 稀土元素 (REEs) 对现代技术至关重要.
- 像伊特这样的REEs的高效和选择性回收仍然是一个挑战.
- 基于纳米粒子的提取为REE回收提供了一个有希望的途径.
研究的目的:
- 开发和优化用于回收的两步固体液体提取工艺.
- 为了评估聚甲基甲酸纳米颗粒与不同化合物功能化的疗效.
- 研究提取过程的热力学特性和选择性.
主要方法:
- 固体-液体提取 (提取和剥离) 使用功能化聚甲基甲酸纳米颗粒.
- 优化工艺参数,包括pH值和固体液体比.
- 使用扫描电子显微镜 (SEM) 和异热定位热量计 (ITC) 进行表征.
主要成果:
- 在单个循环内,在提取和剥离阶段实现了90%的回收效率.
- 确定了最佳条件 (pH,固体-液体比) 和表现最好的功能化化合物.
- SEM证实了纳米粒子的结构完整性和金属复合物的形成.
- 通过调整pH,证明了选择性REE回收的潜力.
- ITC发现提取过程是自发的和高度的.
结论:
- 功能化的聚甲基甲酸纳米颗粒对伊特回收有效.
- 开发的两步提取过程是高度高效和潜在的选择性.
- 该过程的自发性和性性质为恢复机制提供了洞察力.
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