Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Ion Exchange01:17

Ion Exchange

397
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...
397
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

263
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
263
Intermolecular Forces03:13

Intermolecular Forces

55.9K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
55.9K
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

390
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...
390
Principles Of Column Chromatography01:13

Principles Of Column Chromatography

6.5K
The chromatography technique was first invented in 1901 by Michael S. Tswett, a Russian botanist, to separate plant pigments using organic solvents. Further, in 1941, Archer John Porter Martin and R. L. M. Synge modified the technique by packing silica gel into a column. A mixture of amino acids was then separated on the packed column using chloroform and water mixture as the mobile phase. This was the first report on column chromatography. At present, column chromatography is a widely used...
6.5K
Membrane Fluidity01:23

Membrane Fluidity

149.7K
Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.
149.7K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Solvation-Induced Synthesis of COF Nanosheets for Enhanced H<sub>2</sub>/CO<sub>2</sub> Separation.

Journal of the American Chemical Society·2026
Same author

BNIP3-Dependent Mitophagy Non-Autonomously Regulates Systemic Aging via NF-κB Suppression in Drosophila.

Aging cell·2026
Same author

Validating the Online Circle Test (OL-CT): cross-format equivalence, one-week reliability, and contextual stability in Japanese undergraduates.

BMC psychology·2026
Same author

Deep Eutectic Solvent-Water Interfacial Polymerization: A Scalable Route to Tailorable Covalent Organic Framework Membranes.

ACS nano·2026
Same author

TRPML1 in Cisplatin-Induced Acute Kidney Injury: A New Target for Renal Tubular Epithelial Protection by Regulating Lysosomal Calcium Homeostasis.

FASEB journal : official publication of the Federation of American Societies for Experimental Biology·2026
Same author

Large-Scale Preparation of Fluorinated Antifouling Nanofiltration Membranes with High Ion Selectivity for Li<sup>+</sup>/Mg<sup>2+</sup> Separation.

Macromolecular rapid communications·2025
Same journal

Spatially distributed carbon quantum dots in TiO<sub>2</sub> for photothermal-assisted hydrogen production from seawater.

Chemical communications (Cambridge, England)·2026
Same journal

Ultrasonication-assisted preparation of Li<sub>3</sub>PS<sub>4</sub> suspension for all-solid-state Li-ion batteries.

Chemical communications (Cambridge, England)·2026
Same journal

Dual-active-site engineering in cobalt-porphyrin porous hyper-crosslinked polymers enables synergistic catalysis for CO<sub>2</sub> cycloaddition with epoxides.

Chemical communications (Cambridge, England)·2026
Same journal

Optimizing nickel and cobalt-based water oxidation electrocatalysts <i>via</i> iron post-modification.

Chemical communications (Cambridge, England)·2026
Same journal

Facile preparation of a dual-readout metal-organic framework with aggregation-induced emission for highly sensitive detection of GST-α and Fe<sup>2</sup>.

Chemical communications (Cambridge, England)·2026
Same journal

Plasma-assisted ammonia synthesis utilizing water as a hydrogen source: progress, challenges, and prospects.

Chemical communications (Cambridge, England)·2026
See all related articles

Related Experiment Video

Updated: May 12, 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

9.9K

A phase-transition ionic liquid endows COF-based mixed matrix membranes with efficient CO2 separation.

Shuyu Guo1, Jingrao He1, Hailong Han1

  • 1Hunan Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China. shaigu@csu.edu.cn.

Chemical Communications (Cambridge, England)
|May 8, 2025
PubMed
Summary
This summary is machine-generated.

Thermoresponsive ionic liquids improved COF-based membranes for enhanced carbon dioxide separation. The novel IL@DAAQ-COF material achieved high CO2 permeability and selectivity, exceeding performance benchmarks.

More Related Videos

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

8.4K
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

68.9K

Related Experiment Videos

Last Updated: May 12, 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

9.9K
Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

8.4K
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
06:44

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

68.9K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Separation Technology

Background:

  • COF-based mixed-matrix membranes (MMMs) show promise for gas separation.
  • Interfacial compatibility issues often limit the performance of COF-based MMMs.
  • Ionic liquids (ILs) offer tunable properties for material modification.

Purpose of the Study:

  • To enhance the interfacial compatibility of COF-based MMMs.
  • To improve CO2 separation performance using thermoresponsive ionic liquids.
  • To investigate the role of ILs in modulating COF channels and CO2 affinity.

Main Methods:

  • In situ synthesis of IL@DAAQ-COF.
  • Incorporation of thermoresponsive phase-transition ionic liquids into COF structure.
  • Characterization of membrane properties for CO2/N2 separation.

Main Results:

  • Significantly enhanced interfacial compatibility of the COF-based MMMs.
  • IL@DAAQ-COF exhibited a CO2 permeability of 17,449 Barrer.
  • Achieved a CO2/N2 selectivity of 27.2, surpassing the 2019 Jansen/McKeown upper bound.

Conclusions:

  • Thermoresponsive ionic liquids effectively improve COF-based MMMs.
  • The IL@DAAQ-COF demonstrates superior CO2 capture capabilities.
  • This approach offers a promising pathway for advanced gas separation membranes.