Polyvinyl Chloride‐Derived Carbon Spheres for CO2 Adsorption
Open accessAbstract
Polyvinyl chloride (PVC) is the world's third‐most widely produced plastic polymer. Directly transforming PVC to carbonaceous materials for CO 2 capture provides an environmentally friendly and attractive strategy to recycle plastics. In this work, a simple and effective method was developed to prepare PVC‐derived carbon spheres. In this method, the classical “spheroidization” process shaped the original PVC powders into millimeter spheres, and a special dehalogenation and cross‐linking process in the presence of a phase‐transfer catalyst transferred the thermoplasticity of the PVC‐spheres into thermosetting, which stabilized the shape. Furthermore, by rationally adjusting the activation conditions, the porous structure of the carbon spheres was well optimized. With a specific surface area up to 1738 m 2 g−1 and the developed microporous structure, the as‐prepared carbon spheres showed not only excellent performance in pure CO 2 adsorption (8.93 mmol g−1, 39.3 wt% at 0 °C and 5.47 mmol g−1, 24.1 wt% at 25 °C), but also outstanding adsorption capacity and recyclability in low‐concentration CO 2 capture, even superior to conventional molecular sieves.
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The porous carbon spheres obtained after carbonization had a large surface area and good microporous structure, with CO2 adsorption capacity of 8.93 mmol/g at 0 °C.
“The porous carbon spheres obtained after carbonization had a large surface area and good microporous structure, with CO 2 adsorption capacity of 8.93 mmol/g at 0 °C (Wang et al. 2020).”
From Conversion of waste plastics into value-added carbon materials (2023) · cites this paper as Wang et al. 2020
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References 50 · Cited by 58
Research works printed but not linked: 6
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- Authors
- Wang, J., Wang, F., Duan, H., Li, Y., Xu, J., Huang, Y., Liu, B., & Zhang, T.
- Affiliations
- Dalian Institute of Chemical Physics (CN)
- Fujian University of Technology (CN)
- Nanyang Technological University (SG)
- Corresponding author
- Xu, Jinming
- Huang, Yanqiang
- Venue
- ChemSusChem
- Publisher
- Wiley
- Published
- 2020-10-22
- Volume
- 13
- Issue
- 23
- Pages
- 6426-6432
- ISSN
- 1864-5631 (ISSN-L)
- 1864-564X
- OpenAlex
- W3091910315
- Cited by
- 58
- References
- 50
- Citations by year
- 2026: 5 · 2025: 17 · 2024: 7 · 2023: 18 · 2022: 9 · 2021: 2
- FWCI
- 3.57
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- ChemSusChem (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (21925803)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
- Physical Sciences › Engineering › Mechanical Engineering › Industrial Gas Emission Control
- Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Carbon dioxide utilization in catalysis
- Keywords
- polyvinyl chloride, carbon spheres, CO2 adsorption, CO2 capture, plastic recycling, spheroidization, dehalogenation, crosslinking, phase transfer catalyst, porous carbon, specific surface area, microporous structure, low-concentration CO2, adsorbent reusability, molecular sieves
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