Towards carbon neutrality:Sustainable recycling and upcycling strategies and mechanisms for polyethylene terephthalate via biotic/abiotic pathways
作者机构：School of Civil&Environmental EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055China State Key Laboratory of Urban Water Resources and EnvironmentSchool of EnvironmentHarbin Institute of TechnologyHarbin 150090China Institute of Biopharmaceutical and Health EngineeringShenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Tsinghua-Berkeley Shenzhen InstituteTsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China
出 版 物：《Eco-Environment & Health》 (生态环境与健康（英文）)
年 卷 期：2024年第3卷第2期
页 面：117-130页
学科分类：081702[工学-化学工艺] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 0703[理学-化学]
基 金：supported by China Postdoctoral Science Foundation(No.2023M730856) the Launch of Doctoral Basic Research Program in Shenzhen(No.RCBS20221008093129082) the NSFC program(No.22306048) the NSFC-JSPS Program(No.51961145202)
主 题：PET depolymerization Monomers Recycling/upcycling Biocatalysis Photo/electrocatalysis
摘 要：Polyethylene terephthalate(PET),one of the most ubiquitous engineering plastics,presents both environmental challenges and opportunities for carbon neutrality and a circular *** review comprehensively addressed the latest developments in biotic and abiotic approaches for PET recycling/***,microbial depolymerization of PET,along with the biosynthesis of reclaimed monomers[terephthalic acid(TPA),ethylene glycol(EG)]to value-added products,presents an alternative for managing PET waste and enables CO_(2)***,thermal treatments(i.e.,hydrolysis,glycolysis,methanolysis,etc.)and photo/electrocatalysis,enabled by catalysis advances,can depolymerize or convert PET/PET monomers in a more flexible,simple,fast,and controllable *** abiotic/biotic catalysis offers great potential for PET upcycling to generate commodity chemicals and alternative materials,ideally at lower energy inputs,greenhouse gas emissions,and costs,compared to virgin polymer ***,over 25 types of upgraded PET products(e.g.,adipic acid,muconic acid,catechol,vanillin,and glycolic acid,etc.)have been identified,underscoring the potential of PET upcycling in diverse *** can be made to develop chemo-catalytic depolymerization of PET,improve microbial depolymerization of PET(e.g.,hydrolysis efficiency,enzymatic activity,thermal and pH level stability,etc.),as well as identify new microorganisms or hydrolases capable of degrading PET through computational and machine learning ***,this review provides a roadmap for advancing PET recycling and upcycling technologies,which hold the potential to shape the future of PET waste management and contribute to the preservation of our ecosystems.
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