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Updated: Sep 10, 2025
10:27
Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
Published on: July 14, 2015
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CO2/N2 selectivity with high efficiency using new flexible coordinate organic polymer-based core-shell
Soheila Sharafinia1, Nedasadat Saadati Ardestani2, Alimorad Rashidi2
1Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz 613578-3151 Ahvaz Iran sharafi.s2014@gmail.com.
RSC Advances
|August 27, 2025
Summary
Coordinate organic polymers (COPs) combined with metal-organic frameworks (MOFs) enhance CO2 adsorption and separation. This novel approach significantly boosts CO2 capture capacity and selectivity for sustainable gas management.
Area of Science:
- Materials Science
- Chemistry
- Environmental Science
Background:
- Coordinate organic polymers (COPs) and metal-organic frameworks (MOFs) are established porous materials for gas adsorption.
- Combining COPs and MOFs offers synergistic advantages in adsorption performance, stability, and selectivity for gas separation.
- Existing materials face limitations in efficiency and cost-effectiveness for carbon capture applications.
Purpose of the Study:
- To investigate the combined use of COPs and MOFs for enhanced CO2 and N2 adsorption and separation.
- To synthesize and characterize novel core-shell structures of COP@ZIF-8 for gas adsorption applications.
- To evaluate the adsorption capacity and selectivity of these novel materials for CO2/N2 mixtures.
Main Methods:
- Solvothermal synthesis was employed to create COP and COP@ZIF-8 core-shell nanostructures.
- Comprehensive characterization using techniques including FT-IR, XRD, BET, TEM, SEM, TGA, and XPS.
- Gas adsorption and separation experiments were conducted to assess performance for CO2/N2 mixtures under various conditions.
Main Results:
- The COP@ZIF-8 core-shell structure demonstrated a significant increase in CO2 adsorption capacity, rising from 0.209 to 3.425 mmol g-1 at 1 bar and 300.15 K.
- Adsorption selectivity for CO2/N2 was dramatically improved; COP@ZIF-8 (20% and 30%) showed selectivities of 207.752 and 200.592, respectively, compared to pure COP's 14.824.
- The synergistic combination of COP and ZIF-8 effectively enhanced the gas adsorption and separation properties.
Conclusions:
- The developed COP@ZIF-8 core-shell nanostructures represent an efficient and cost-effective advancement in adsorbent technology.
- This hybrid material approach overcomes limitations of individual components, offering improved performance for CO2 capture and separation.
- The findings open new avenues for designing sustainable and high-performance porous materials for environmental applications.
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