China Plastics ›› 2024, Vol. 38 ›› Issue (4): 79-87.DOI: 10.19491/j.issn.1001-9278.2024.04.013

• Plastic and Environment • Previous Articles     Next Articles

Research progress in upcycling of waste plastics

HU Yanqing1, HU Fan1, ZHOU Jianchi1, DOU Yibo1,2()   

  1. 1.State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
    2.Quzhou Institute for Innovation in Resource Chemical Engineering, Quzhou 324000, China
  • Received:2023-09-11 Online:2024-04-26 Published:2024-04-22

Abstract:

This paper reviewed the research progress in the upcycling of waste plastics from physical⁃mechanical recycling to the chemical upcycling of plastic waste. The elucidation and analysis of advanced chemical catalytic methods, including, thermal catalysis, microwave catalysis, bio⁃catalysis, electro⁃catalysis, and photocatalysis, were introduced, which exhibited great potential for a wide range of application. Moreover, the rational design, structure characterization of catalyst, and performance evaluation on the upcycling of waste plastics were also systemically introduced. Especially, the yield, selectivity, and reaction mechanisms of plastic treatment were discussed. In addition, the advantages and disadvantages of various methods were comparatively presented. Based on the current progress in the waste plastic recycling, some insights into the challenges and future directions in this field were proposed to provide guidance for the recycling of plastics into high⁃value⁃added chemicals.

Key words: waste plastics, physical recycling, chemical catalysis, high?value?added chemicals

CLC Number: