虽然聚对苯二甲酸乙二醇酯(PET)已经得到了广泛的应用,结果也产生了大量的塑料废物,这对环境是有害的。传统的塑料废物处理,例如填埋和焚烧废物,造成环境污染,对公众健康构成风险。将PET废物再循环成有用的化学品或将废物再循环成高附加值材料可以是补救措施。这篇综述首先简要介绍了合成,结构,属性,和纯PET的应用。然后介绍了用于不同应用的废PET转化为高附加值材料的工艺。转换机制(包括退化,回收和再循环)是详细的。这些升级材料在储能设备(超级电容器、锂离子电池,和微生物燃料电池),和水处理(去除染料,重金属,和抗生素),环境修复(用于空气过滤,CO2吸附,和除油)和催化(产生H2,光致CO2和去除有毒化学物质)进行了详细讨论。总的来说,这篇综述详细介绍了将废弃PET转化为纳米结构材料的先进技术的探索,用于各种应用,并深入了解高附加值废物产品在可持续性和经济发展中的作用。
While polyethylene terephthalate (PET) has enjoyed widespread use, a large volume of plastic waste has also been produced as a result, which is detrimental to the environment. Traditional treatment of plastic waste, such as landfilling and incinerating waste, causes environmental pollution and poses risks to public health. Recycling PET waste into useful chemicals or upcycling the waste into high value-added materials can be remedies. This review first provides a brief introduction of the synthesis, structure, properties, and applications of virgin PET. Then the conversion process of waste PET into high value-added materials for different applications are introduced. The conversion mechanisms (including degradation, recycling and upcycling) are detailed. The advanced applications of these upgraded materials in energy storage devices (supercapacitors, lithium-ion batteries, and microbial fuel cells), and for water treatment (to remove dyes, heavy metals, and antibiotics), environmental remediation (for air filtration, CO2 adsorption, and oil removal) and catalysis (to produce H2, photoreduce CO2, and remove toxic chemicals) are discussed at length. In general, this review details the exploration of advanced technologies for the transformation of waste PET into nanostructured materials for various applications, and provides insights into the role of high value-added waste products in sustainability and economic development.