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通过使用胺功能化的MXene/CoZn-MOF异构电极,通过流容性脱离离的增强海水提取

Keming Wan¹, Shideng Yuan¹, Jiaojiao Zhang¹

¹Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, Shandong 266237, PR China.

|July 9, 2025

概括

新的mXene/CoZn-MOF异质连接电极 (MMA) 通过流电极电容脱离离 (FCDI) 有效地提取. 这些电极显示出从海水中去除的高容量和选择性,为核工业提供了可持续的解决方案.

科学领域:

材料科学材料科学材料科学
环境科学环境科学
电化学电化学电化学

背景情况:

对于可持续的核工业至关重要,需要高效的提取方法.
流电极电容脱离离 (FCDI) 显示出由于其离子捕获能力,从海水中回收的希望.
现有方法在取的选择性和连续运行方面面临挑战.

研究的目的:

设计和评估基于FCDI的提取的新型胺基胺功能化的MXene/CoZn-MOF异质连接电极 (MMA).
研究MMA电极的吸附能力,选择性和可重复使用性,用于回收.
通过计算模拟,阐明吸附的基本机制.

主要方法:

制造具有阿米多キシ功能组的等级多孔MMA电极.
在FCDI中MMA电极的性能评估,用于从水溶液和海水淡化缩物中提取.
在多个循环中评估电极稳定性和可重复使用性.
使用密度函数理论 (DFT) 和分子动力学 (MD) 模拟来理解吸附机制.

主要成果:

MMA电极表现出2322.4毫克-1的高吸附能力.
从500毫克L-1溶液中获得95.6%的去除,在1.2V的情况下在2小时内达到95.6%的去除.
从海水淡化缩物中证明了吸附率为1.43毫克/天.
在20个重复使用周期后保持了90.5%的去除效率,表明了出色的稳定性.

结论:

开发的MMA电极对于通过FCDI提取非常有效,提供更高的容量和选择性.
层次性的多孔结构和胺组是提高性能的关键.
这些发现为高效的回收提供了关于FCDI机制和电极设计的宝贵见解.

关键词:

流电极电容性去离子化电流电极电容性去离子化异质连接结构的结构是异质连接.海水和海水海水淡化缩物选择性吸附是一种选择性吸附.的开采是的开采方式.

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