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<p>The massive production of waste plastics and severe environmental pollution make effective treatment and utilization of waste plastics urgent. Converting waste plastics into activated carbon not only addresses environmental issues but also provides economic benefits. This study reviewed methods and applications of preparing activated carbon from waste plastics, introducing their classification and characteristics. Various factors affecting the performance of activated carbon were discussed, with KOH identified as the best activator, achieving a specific surface area of 2712 m<sup>2</sup>/g. Efficient technologies like catalytic and microwave pyrolysis were highlighted. Applications of activated carbon in wastewater treatment, catalytic materials, waste gas treatment, and battery electrodes were analyzed, showcasing its capability to adsorb organic pollutants and heavy metals, with CO<sub>2</sub> adsorption up to 8.93 mmol/g. Finally, challenges and future directions were summarized, focusing on improving activation efficiency, reducing energy consumption, and expanding application fields.</p>

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Research progress on methods, mechanisms, and applications of activated carbon preparation from waste plastics by pyrolysis

  • 期刊论文

  • 发表日期：

    2025年5月5日

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  • Liangjie Li,
  • Wenting Fu,
  • Yufan Liu,
  • Fang Gou,
  • Yue Gao,
  • Zhilin Xing

摘要

The massive production of waste plastics and severe environmental pollution make effective treatment and utilization of waste plastics urgent. Converting waste plastics into activated carbon not only addresses environmental issues but also provides economic benefits. This study reviewed methods and applications of preparing activated carbon from waste plastics, introducing their classification and characteristics. Various factors affecting the performance of activated carbon were discussed, with KOH identified as the best activator, achieving a specific surface area of 2712 m2/g. Efficient technologies like catalytic and microwave pyrolysis were highlighted. Applications of activated carbon in wastewater treatment, catalytic materials, waste gas treatment, and battery electrodes were analyzed, showcasing its capability to adsorb organic pollutants and heavy metals, with CO2 adsorption up to 8.93 mmol/g. Finally, challenges and future directions were summarized, focusing on improving activation efficiency, reducing energy consumption, and expanding application fields.