Issue 4, 2022

Sustainability-inspired upcycling of waste polyethylene terephthalate plastic into porous carbon for CO2 capture

Abstract

In addition to climate change, plastic pollution is widely recognized as one of the most severe environmental concerns. Waste plastic-derived advanced materials for carbon capture provide promising solutions to these environmental issues. However, the environmental sustainability and economic feasibility of such a novel approach are still unclear for it to be implemented on an industrial scale globally. As synthesis routes differ in terms of their environmental impact and economic feasibility, we synthesized three waste polyethylene terephthalate (PET) plastic-derived porous carbons (PET6-CO2-9, PET6-K7, and PET6-KU7) using physical and chemical activation routes. The resulting porous carbons exhibited high CO2-capture capacities. Based on techno-economic and life-cycle assessments of the scaled-up industrial processes, we showed that the physical CO2 activation approach performs the best in the reduction of carbon emissions, providing the possibility for carbon neutrality while exhibiting financial viability (net present value of at least €19.22 million over the operating life of the project). Owing to the environmental benefits and economic feasibility of this approach, we highlighted its potential as a multifunctional alternative to conventional CO2 absorption and plastic waste management technologies.

Graphical abstract: Sustainability-inspired upcycling of waste polyethylene terephthalate plastic into porous carbon for CO2 capture

Supplementary files

Article information

Article type
Paper
Submitted
30 Sep 2021
Accepted
03 Dec 2021
First published
10 Jan 2022
This article is Open Access
Creative Commons BY license

Green Chem., 2022,24, 1494-1504

Sustainability-inspired upcycling of waste polyethylene terephthalate plastic into porous carbon for CO2 capture

X. Yuan, N. M. Kumar, B. Brigljević, S. Li, S. Deng, M. Byun, B. Lee, C. S. K. Lin, D. C. W. Tsang, K. B. Lee, S. S. Chopra, H. Lim and Y. S. Ok, Green Chem., 2022, 24, 1494 DOI: 10.1039/D1GC03600A

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements