Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

497
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
497
Ion Exchange01:17

Ion Exchange

626
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
626

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Diffusion-Trap Mechanism-Mediated Trace Propylene Capture in a Microporous Metal-Organic Framework Enables Record Ethylene Purification From Cracking Gas.

Angewandte Chemie (International ed. in English)·2026
Same author

Selective Photocatalytic CO<sub>2</sub> Reduction via Enhanced CO<sub>2</sub> Adsorption and Activation Over Co-Salen Functionalized Zr-MOF Catalyst.

Angewandte Chemie (International ed. in English)·2026
Same author

Molecular Dipole Optimized Hybrid Metal Halide for Piezoelectric Ultrasound Monitoring of Aquatic Organisms.

Nano letters·2026
Same author

Gate-Tailoring with Protons and Metal Cations in a Flexible Zeolite for High-Efficiency Ethylene/Ethane Separation.

Journal of the American Chemical Society·2026
Same author

Interfacial Donor-Acceptor Engineering in MOFs: Synergizing Self-Excitation and External Charge Utilization for High-Efficiency Photocatalytic Hydrogen Evolution.

Angewandte Chemie (International ed. in English)·2026
Same author

Melt-sintering of MOF glass-2D nanosheet composites for enhanced processability and gas separation performance.

Chemical science·2026

相关实验视频

Updated: Jul 26, 2025

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
07:45

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

10.0K

极地群的固定化为超微孔金属有机框架,使得基准反向选择性CO2/C2 分离与记录C2

Shan-Qing Yang1, Rajamani Krishna2, Hongwei Chen3

  • 1School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University, Tianjin 300350, China.

Journal of the American Chemical Society
|June 13, 2023
PubMed
概括
此摘要是机器生成的。

一种新型的甲基功能化金属有机框架,Zn-ox-mtz,可以有效地从二氧化碳 (CO2) 中净化乙烯 (C2H2). 这种突破性的吸收剂在乙烯分离方面具有很高的选择性和生产力,超过了现有的技术.

更多相关视频

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
10:27

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides

Published on: July 14, 2015

10.1K
In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework
11:38

In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework

Published on: February 1, 2020

16.0K

相关实验视频

Last Updated: Jul 26, 2025

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
07:45

Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes

Published on: August 16, 2018

10.0K
Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
10:27

Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides

Published on: July 14, 2015

10.1K
In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework
11:38

In situ FTIR Spectroscopy as a Tool for Investigation of Gas/Solid Interaction: Water-Enhanced CO2 Adsorption in UiO-66 Metal-Organic Framework

Published on: February 1, 2020

16.0K

科学领域:

  • 材料科学
  • 化学工程
  • 吸附科学

背景情况:

  • 由于具有相似的特性,将乙 (C2H2) 与二氧化碳 (CO2) 分离是具有挑战性的.
  • 现有的二氧化碳选择性吸附剂难以有效净化C2H2.
  • 对于工艺的效率来说,不吸附的单步分离是非常理想的.

研究的目的:

  • 开发一种可选择性碳吸收剂,用于高效的一步C2H2净化.
  • 实现金属有机框架 (MOF) 的功能,以提高气体分离性能.
  • 研究开发的吸附剂的分离机制和稳定性.

主要方法:

  • 孔腔化学策略:将甲基固定成超微孔的MOF (Zn-ox-trz).
  • 在环境条件下测量气体吸附和选择性.
  • 分子模拟以阐明相互作用机制.
  • 用于性能验证的列突破实验.
  • 在各种pH值范围内进行化学稳定性测试.

主要成果:

  • 甲基功能化Zn-ox-mtz实现了创纪录的C2H2生产率2091 mmol kg-1.
  • 证明了异常的CO2/C2H2选择性为1064.9.
  • 呈现出12.6的高反向CO2/C2H2吸收比率.
  • 在pH1-12之间表现出卓越的化学稳定性.
  • 分子模拟证实了孔隙封闭和甲基在二氧化碳识别方面的协同效应.

结论:

  • Zn-ox-mtz是一种高效的吸附剂,用于从CO2/C2H2混合物中单步C2H2净化.
  • 与现有的二氧化碳选择性吸附剂相比,开发的MOF具有更高的性能.
  • 它的稳定性和选择性表明它具有重要的工业乙生产潜力.
  • 这项工作促进了逆选择性吸附剂的开发,以挑战气体分离.