摘要
综述了塑料在传统物理机械回收和当前研究热点化学升级转化的成果,重点对化学催化方法包括热催化、微波催化、生物催化、电催化、光催化等具有潜在应用前景的方法进行了阐述.系统介绍了化学升级转化塑料,特别是催化转化中核心催化剂的设计构筑、催化产物种类、产率和选择性的调控以及构效关系的机理揭示.此外,通过对比各类方法探讨了优缺点、总结了相关方法面临的问题.最后,基于目前废旧塑料回收存在的挑战和后期发展方向提出了建议,以期为废弃塑料回收为高附加值化学品提供理论指导.
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,includ-ing,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 cata-lyst,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 disad-vantages 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.
基金项目
国家自然科学基金(22278029)
中央高校基本科研业务费专项(buctrc202203)
国家科技期刊平台
NSTL
维普
万方数据