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From Plastic Waste to Treasure: Selective Upcycling through Catalytic Technologies

Microchimica Acta 2023 87 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Shuai Yue, Pengfei Wang, Bingnan Yu, Tao Zhang, Zhiyong Zhao, Yi Li, Sihui Zhan

Summary

Researchers review recent advances in catalytic technologies—including thermocatalysis, electrocatalysis, and photocatalysis—for upcycling plastic waste into valuable chemicals, highlighting how selective bond activation can convert what would otherwise be waste into high-value products.

Abstract The huge amount of plastic wastes has become a pressing global environmental problem, leading to severe environmental pollution and resource depletion through conventional downcycling technologies like incineration and landfilling. In contrast, selective upcycling of various plastics offers a promising solution for converting waste plastics into valuable products. This review provides a comprehensive overview of the recent advancements in innovative catalytic technologies, including thermocatalysis, electrocatalysis, and photocatalysis. Special emphasis is placed on elucidating the reaction mechanisms, activating designated chemical bonds for high selectivity, and elaborating the above techniques in terms of reaction conditions and products. Finally, the application prospects and future development trends in plastic catalysis are discussed, providing valuable insights for realizing a sustainable circular plastic economy.

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