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Conversion of waste plastics into value-added carbon materials

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Abstract

Plastic pollution is a major environmental issue worldwide, calling for advanced methods to recycle waste plastics in the context of the circular economy. Here we review methods and strategies to convert waste plastics into value-added carbon materials, with focus on sources, properties, pretreatment of waste plastics, and on preparation of carbon materials. Pretreatment techniques include mechanical crushing, plastic stabilization and electrospinning. Carbon materials such as carbon nanotubes, graphene, carbon nanosheets, carbon spheres and porous carbon are prepared by oxygen-limited carbonization, catalytic carbonization, the template-based method, and pressure carbonization. We emphasize the conversion of polyethene terephthalate, polyethylene, polypropylene, polystyrene, halogenated plastics, polyurethane and mixed plastics.

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by YL and CW. EL, XL, and HJ contributed to the revision of the manuscript.

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Correspondence to Chongqing Wang.

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The authors have no relevant financial or non-financial interests to disclose.

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Luo, Y., Lin, X., Lichtfouse, E. et al. Conversion of waste plastics into value-added carbon materials. Environ Chem Lett 21, 3127–3158 (2023). https://doi.org/10.1007/s10311-023-01638-7

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  • DOI: https://doi.org/10.1007/s10311-023-01638-7

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