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

Extraction: Advanced Methods00:56

Extraction: Advanced Methods

528
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...
528
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

762
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...
762

You might also read

Related Articles

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

Sort by
Same author

Synergistic Pore Microenvironment Engineering in Zinc Metal-Organic Frameworks for High SF<sub>6</sub>/N<sub>2</sub> Selectivity and Humidity-Resistant Trace SF<sub>6</sub> Capture.

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

Twist-Induced Flat Bands and Magnetic Phase Transitions in 1T-FeCl<sub>2</sub> Bilayers: A First-Principles Study.

The journal of physical chemistry letters·2026
Same author

Amino Functionalization-Induced Coordination Geometry Switch Enables Pore Size Exclusion and Selective CHF<sub>3</sub> Capture in Two Cu-Based Metal-Organic Frameworks.

Inorganic chemistry·2026
Same author

Enhanced Electrochemical Detection of Circularly Polarized Light Enabled by Spin-Selective Oxygen Evolution Reaction.

Journal of the American Chemical Society·2026
Same author

High-throughput screening of two-dimensional ferromagnetic materials with high Curie temperatures.

Nanoscale·2026
Same author

A Robust Metal-Organic Framework With 'Molecular Gates' for Efficient Separation of Ethane From Ethylene.

Angewandte Chemie (International ed. in English)·2026

Related Experiment Video

Updated: Sep 11, 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

10.1K

A scalable zinc-based coordination network for energy-efficient NF3/CF4 separation with unprecedented selectivity.

Yi-Tao Li1, Weilin Li2, Li-Ping Zhang1

  • 1State Key Laboratory of Fluorine & Nitrogen Chemicals, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, School of Chemical Engineering and Technology, Xi'an Jiaotong University Xi'an 710049 China qingyuan.yang@xjtu.edu.cn.

Chemical Science
|August 18, 2025
PubMed
Summary

A novel zinc-based metal-organic framework, CALF-20, effectively separates nitrogen trifluoride (NF3) and carbon tetrafluoride (CF4) gases. This breakthrough offers a sustainable and cost-effective solution for semiconductor manufacturing waste emissions.

More Related Videos

Efficient Synthesis of All-Carbon Quaternary Centers via the Conjugate Addition of Functionalized Monoorganozinc Bromides
07:50

Efficient Synthesis of All-Carbon Quaternary Centers via the Conjugate Addition of Functionalized Monoorganozinc Bromides

Published on: May 26, 2019

9.4K
Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry
16:11

Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry

Published on: June 8, 2022

2.4K

Related Experiment Videos

Last Updated: Sep 11, 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

10.1K
Efficient Synthesis of All-Carbon Quaternary Centers via the Conjugate Addition of Functionalized Monoorganozinc Bromides
07:50

Efficient Synthesis of All-Carbon Quaternary Centers via the Conjugate Addition of Functionalized Monoorganozinc Bromides

Published on: May 26, 2019

9.4K
Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry
16:11

Thermochemical Studies of NiII and ZnII Ternary Complexes Using Ion Mobility-Mass Spectrometry

Published on: June 8, 2022

2.4K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Environmental Science

Background:

  • Nitrogen trifluoride (NF3) and carbon tetrafluoride (CF4) are essential in semiconductor manufacturing.
  • Current separation methods for NF3 and CF4 are ineffective, leading to costly waste and environmental issues.
  • The similar physicochemical properties of NF3 and CF4 present a significant separation challenge.

Purpose of the Study:

  • To develop an efficient method for separating nitrogen trifluoride (NF3) from carbon tetrafluoride (CF4).
  • To address the environmental and economic challenges associated with waste emissions in semiconductor manufacturing.
  • To demonstrate the efficacy of a specific metal-organic framework for gas separation.

Main Methods:

  • Utilized a zinc-based metal-organic framework (CALF-20) with precisely tuned 4.8 Å pores.
  • Employed molecular sieving as the primary separation mechanism.
  • Conducted breakthrough experiments and structural/computational studies for characterization.

Main Results:

  • CALF-20 achieved exceptional NF3/CF4 separation via molecular sieving.
  • A record NF3/CF4 adsorption ratio of 41.1 was observed at 298 K.
  • CF4 purity of 99.5% was attained, with preferential adsorption of NF3 due to pore size selectivity.

Conclusions:

  • CALF-20 demonstrates superior performance in NF3/CF4 separation, enabling efficient gas purification.
  • The developed material offers a cost-effective solution ($12.3/kg) for sustainable semiconductor manufacturing.
  • This research provides a practical approach to mitigate waste emissions and environmental impact.