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设计高效率的MOF用于选择性捕获Ag(I):DFT计算和实际应用

Manying Zhu¹, Xiang Liu¹, Dawei Xiang¹

¹Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China; National Local Joint Laboratory of Engineering Application of Microwave Energy and Equipment Technology, Kunming, Yunnan 650093, China.

Journal of hazardous materials

|July 18, 2024

概括

一种新的金属有机框架吸收剂 (MOF-RD) 能够有效地从废水中捕获银离子. 这种吸附剂具有很高的容量和选择性,为白银回收和环境保护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:

从废水中回收银对于环境保护和工业需求至关重要.
现有的银离子去除方法往往缺乏效率和选择性.
需要开发先进的吸附剂才能有效地修复银.

研究的目的:

引入一种新型的金属有机框架吸收剂 (MOF-RD) 进行高效和选择性的银离子捕获.
研究银离子MOF-RD的吸附机制,动力学和热力学.
评估MOF-RD在实际废水中的实际适用性和可重复使用性.

主要方法:

合成一种新的金属有机框架 (MOF-RD),使用罗丹衍生物作为链接剂.
吸附实验以确定容量,选择性和动力学 (伪二阶,Sips模型).
在真实废水样本中进行热力学研究和验证,使用具有竞争力的金属离子.

主要成果:

在pH 5和318 K.下,MOF-RD对Ag (I) 具有707.2 mg·g-1的高吸附能力.
吸附遵循伪二阶和Sips模型,表明内热性质.
在真实的废水中证实了Ag(I) 的选择性吸附,在10个循环中具有强大的再生能力.

结论:

MOF-RD是一种高效和选择性的吸附剂,用于从工业废水中回收银离子.
该研究为基于MOF的材料提供了新的见解,用于金属离子分离和回收.
这项工作为可持续的白银管理和废水处理提出了一个有前途的战略.

关键词:

在 DFT 方面,它是最重要的.MOFs 的使用情况.恢复恢复恢复恢复选择性的选择性银离子是一种银离子.

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