Cascade degradation and electrocatalytic upcycling of waste poly(ethylene terephthalate)to valued products  

作　　者：Xin Li Zirui Jiang Zongkui Kou John Wang Shiyou Zheng 

机构地区：[1]School of Materials and Chemistry,University of Shanghai for Science and Technology,Shanghai 200093,China [2]School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China [3]Department of Materials Science and Engineering,National University of Singapore,Singapore 117574,Singapore

出　　处：《Nano Research》2025年第1期76-93,共18页纳米研究（英文版）

基　　金：support of the National key research and development program(No.2023YFB250400);the National Natural Science Foundation of China(No.52271222);the Science and Technology Commission of Shanghai Municipal(Nos.23DZ1202500 and 21010503100);the Shanghai Young Outstanding Academic Leaders Plan(Overseas);the Shanghai Pujiang Program(No.23PJ1409300).

摘　　要：The global annual production of poly(ethylene terephthalate)(PET)has reached 82 million tons,yet only a small fraction(less than 20%)is recycled.The ultra-slow degradation rate of PET results in the accumulation of PET waste in the environment,causing serious plastic pollution and posing severe challenges to ecosystems.In response,great efforts have been directed toward developing a cascade degradation and electrocatalytic upcycling strategy,which serves as a“waste-towealth”pathway.This strategy involves electro-reforming PEThydrolyzed intermediates or using PET pyrolyzed products as electrocatalysts to generate high-value products.This review provides an overview of the state-of-the-art strategies for the“degradation-electrocatalytic upcycling(De-eUp)”of PET waste.Initially,an introduction to the strategy is provided,categorizing it into two main frameworks:“pyrolysis-electrocatalytic upcycling”and“hydrolysis-electrocatalytic upcycling”.The section on“pyrolysis-electrocatalytic upcycling”delves into the degradation methods for designing derived carbon nanomaterials and their utilization as high-performance electrocatalysts.The“hydrolysis-electrocatalytic upcycling”section discusses recent advancements in electro-reforming of PET hydrolyzed intermediates for the production of C_(1) and C_(2) products.The review concludes by examining the challenges and future prospects in developing an efficient and economical PET upcycling strategy.It is anticipated that this review will stimulate further progress in plastic waste valorization.

关 键 词：poly(ethylene terephthalate)waste electrocatalytic upcycling pyrolysis HYDROLYSIS ethylene glycol oxidation reaction 

分 类 号：O64[理学—物理化学]