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Thickness controllable hypercrosslinked porous polymer nanofilm with high CO2 capture capacity
Pengju Shi1, Xueqin Chen1, Zhengguang Sun1
1Key Laboratory of Polymer Material in Hubei Province, Hubei University, Wuhan 430062, China.
Journal of Colloid and Interface Science
|December 28, 2019
Summary
New porous polymer nanofilms offer superior carbon dioxide (CO2) capture. This facile fabrication method creates thickness-controllable materials with high surface area, ideal for CO2 storage and recycling.
Area of Science:
- Materials Science
- Chemical Engineering
- Environmental Science
Background:
- Porous polymer nanofilms are promising for CO2 capture due to high surface area and micropores.
- Developing controllable fabrication methods is crucial for efficient CO2 adsorbents.
Purpose of the Study:
- To develop a facile strategy for fabricating thickness-controllable porous polymer nanofilms.
- To evaluate the CO2 capture capacity and recyclability of these novel nanofilms.
Main Methods:
- Fabrication of poly(styrene-butyl acrylate) nanofilms using covalent layer-by-layer (LBL) self-assembly.
- Post-treatment via hypercrosslinking to create porous structures.
- Characterization of porosity (BET) and CO2 adsorption capacity (273 K/1 bar).
Main Results:
- Hypercrosslinked nanofilms exhibit high surface area (605.7 m²/g) with micro- and mesoporous structures.
- Achieved a CO2 capture capacity of 53.6 wt% (12.2 mmol/g), comparable to the highest records.
- Adsorption capacity decreases with increasing nanofilm thickness; excellent recyclability demonstrated.
Conclusions:
- A simple strategy successfully produced thickness-controllable porous polymer nanofilms for CO2 capture.
- These nanofilms show superior performance and recyclability, addressing challenges in CO2 capture technology.
