Related Experiment Video
Updated: Aug 5, 2026
06:00
Solvothermal Synthesis of MIL-96 and UiO-66-NH2 on Atomic Layer Deposited Metal Oxide Coatings on Fiber Mats
Published on: June 13, 2018
12.1K
Metal-organic framework-immobilized track-etched membrane with PVC nanofiber mats for carbon dioxide capture
Aigerim Kh Shakayeva1,2, Dias D Omertassov1,2, Zhanna K Zhatkanbayeva2
1The Institute of Nuclear Physics Ibragimov Str., 1 Almaty 050032 Kazakhstan i.korolkov@inp.kz.
RSC Advances
|October 9, 2025
Summary
This study developed a novel composite membrane using metal-organic frameworks (MOFs) integrated into nanofibers on track-etched membranes for efficient carbon dioxide (CO2) capture. The new material demonstrates high adsorption capacity and excellent regenerability, offering a promising solution for climate change mitigation.
Area of Science:
- Materials Science
- Chemical Engineering
- Environmental Science
Background:
- Rising atmospheric carbon dioxide (CO2) concentrations drive climate change, demanding advanced CO2 capture technologies.
- Conventional CO2 capture methods like amine adsorption and cryogenic separation face challenges including high energy costs, corrosion, and solvent degradation.
- Membrane technology presents a viable alternative to overcome limitations of traditional CO2 capture approaches.
Purpose of the Study:
- To develop and characterize a novel composite membrane for efficient CO2 capture.
- To investigate the CO2 adsorption capacity and regenerability of the developed membrane.
- To explore the potential of integrating metal-organic frameworks (MOFs) into membrane structures for enhanced performance.
Main Methods:
- Synthesis of HKUST-1 metal-organic frameworks (MOFs) via solvothermal method.
- Incorporation of MOFs into polyvinyl chloride (PVC) nanofibers using electrospinning.
- Deposition of MOF-loaded nanofibers onto polyethylene terephthalate (PET) track-etched membranes (TeMs).
- Secondary decoration of HKUST-1 to increase MOF concentration.
- Characterization using FTIR, XRD, SEM-EDX, BET, TGA, and contact angle measurements.
Main Results:
- The composite membrane exhibited a high BET surface area of 135.26 m² g⁻¹.
- The membrane displayed a hydrophobic nature with a contact angle of 95° ± 9°.
- The PVC/HKUST-1(SD)@PET TeM achieved a CO2 adsorption capacity of 1.48 mmol g⁻¹ at 25 °C.
- The membrane retained 94% of its initial CO2 adsorption capacity after 12 adsorption-desorption cycles, indicating efficient regeneration.
Conclusions:
- The developed composite membrane, featuring HKUST-1 MOFs within PVC nanofibers on PET TeMs, shows significant promise for CO2 capture.
- The high surface area and porosity of the integrated MOFs contribute to enhanced CO2 adsorption.
- The membrane's efficient regenerability and stable performance over multiple cycles highlight its potential for practical CO2 capture applications.
