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基于Co/SH的MOF内置了纳米过膜,用于在净化水中的高效吸收

Hansi Zhang¹, Qingzhi Liu², Peilei Zhou¹

¹Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, Shandong 266100, China.

Journal of hazardous materials

|December 13, 2024

概括

这项研究引入了一种新的Co-MOF-74-SH材料,用于有效地从水中去除. 将这种材料固定到纳米过膜中,可以实现几乎完全的去除和有效的盐分离.

科学领域:

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

背景情况:

金属有机框架 (MOF) 对水污染物去除有希望,但在 (Se) 的效率和回收方面面临挑战.
现有的MOF在去除有毒方面存在局限性,并且在处理后很难恢复.

研究的目的:

开发一种具有双活性位点的Co-MOF-74-SH材料,用于增强吸附.
制造一个多功能纳米过 (NF) 膜,结合Co-MOF-74-SH,以有效地去除和分离盐.

主要方法:

合成具有双Co/S活性位点的Co-MOF-74-SH.
将Co-MOF-74-SH固定在NF膜中.
密度功能理论 (DFT) 模拟用于研究Se吸附机制.
评价膜的性能,以去除和盐分离.

主要成果:

由于 Co/S 部位和之间强烈的合作相互作用,Co-MOF-74-SH 显示出 94.1% 的高 Se 去除效率.
制造的NF膜实现了~99.6%的显著Se去除,明显超过了原始膜 (~74.4%).
膜表现出优异的双价/单价盐选择性 (>80) 和高水透率 (15.80 Lm-2h-1bar-1).

结论:

开发的Co-MOF-74-SH材料及其内置的NF膜为从水中去除提供了高效的解决方案.
这项工作为设计用于水净化和废水资源利用的先进膜材料提供了新的途径.

关键词:

在 DFT 方面,它是最重要的.金属有机框架的框架.纳米过膜是一种纳米过膜.去除去除去除水的净化水的净化方法

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