废弃聚对苯二甲酸乙二醇酯升级再造为碳材料和金属-有机框架材料

Upgrading Waste Poly(ethylene terephthalate)into Carbon Material and Metal-Organic Framework

伴随着聚对苯二甲酸乙二醇酯(PET)被广泛应用于饮料瓶、纺织、薄膜和合成纤维,大量废弃PET制品造成的环境污染问题日益突出。将废弃PET升级化学回收,制备高附加值产品是解决废弃PET环境污染问题及使资源可持续发展的重要技术。结合本研究组在该领域的工作,本文介绍了近年来废弃PET高值化制备多孔碳和金属-有机框架材料(MOF)的研究进展,归纳了不同类型多孔碳和MOF的制备方法,总结了PET降解和碳化反应的影响因素和反应机理,概述了所制备的多孔碳和MOF在太阳能界面水蒸发以及与光催化降解污染物、热电发电集成中的应用,对未来的发展方向进行了展望。

With the widespread application of poly(ethylene terephthalate)(PET)in beverage bottles,textiles,film,and synthetic fibers,the environmental pollution caused by discarded PET products is becoming increasingly prominent.Chemical upcycling of waste PET to prepare high value-added materials is an important technology to solve the environmental pollution problem of waste PET and ensure sustainable development of resources.Based on the work of our research group in this field,this article introduces the research progress on the preparation of high-value porous carbon and metal-organic framework(MOF)material from waste PET in recent years,summarizes the preparation methods of different types of porous carbon and MOF,introduces the influencing factors and reaction mechanisms of PET degradation and carbonization reaction,and discusses the applications of the prepared porous carbon and MOF in interfacial solar-driven water evaporation and its integration with photocatalytic degradation of pollutants and thermoelectric power generation.Prospects are made for the future development direction.