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Electrocatalytic Depolymerization of PET Plastic Fibers for Circular Textiles
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This review paper looks at a smarter way to break down polyester (PET) fabric—the fibers used in tons of our clothing—using electricity instead of heat or harsh chemicals, so old textiles could actually be recycled back into new material rather than piling up in landfills or shedding into the environment. This matters because polyester fibers are notoriously hard to break down and are a major source of microplastic pollution, the tiny plastic particles now found in our water, food, and even our bodies. While this technology is still being developed and isn't yet ready for widespread use, it points toward a future where our clothes could be part of a genuine recycling loop instead
Poly (ethylene terephthalate) (PET) fibers constitute the largest share of global PET and are central to textiles and technical fabrics, yet high crystallinity, strong orientation, and complex finishing make them resistant to degradation and major sources of persistent microplastics. Conventional routes such as mechanical reprocessing, thermal depolymerization, hydrolysis, and alcoholysis were adapted from bulk PET but are inefficient for fibers due to limited accessibility, surface barriers, and poor selectivity toward high-purity monomers. This review adopts a fiber-centered perspective on electrocatalytic PET degradation that integrates structural, interfacial, and process considerations. It compares multiscale structural and chemical differences between fibers and bulk PET, and analyzes how pretreatments such as desizing, swelling, and surface activation condition fibers for electrochemical reactivity. It outlines fundamental principles of electrocatalytic depolymerization and classifies catalysts by structural descriptors including crystallinity, composition, and interfaces, supported by a consolidated dataset. Distinct from previous surveys, the review foregrounds fiber-specific interfaces and pretreatments and proposes a structure-centric framework for catalyst design. Highlights include transferable descriptors for cross-comparison and explicit coupling of pretreatment with catalyst selection. Looking ahead, priority is placed on scalable, continuous electrocatalytic platforms that link renewable electricity with circular textile recycling.
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From Traditional Depolymerization to Value-Added Upgrading: Upcycling of PET Fibers with Sustainable Chemistry and Renewable Energy
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This review paper summarizes existing research on converting waste PET plastic (used in bottles and textile fibers) into valuable chemicals instead of letting it become microplastic pollution. It examines chemical methods, including heat, electricity, and light-based processes, used to break down PET, and discusses challenges and future directions for turning plastic waste into a reusable resource.
From Waste to Value: Advances in Recycling Textile-Based PET Fabrics
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This review examines recent advances in recycling polyethylene terephthalate (PET) textile fabrics, with a focus on fiber-to-fiber regeneration as a path toward circular textile production. Researchers found that chemical depolymerization methods show particular promise for recovering high-purity monomers suitable for making new textile-grade PET, potentially reducing textile waste that contributes to microplastic pollution.
Catalytic depolymerization of polyester plastics toward closed-loop recycling and upcycling
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Researchers review catalytic depolymerization strategies for polyester plastics, examining how chemical catalysts can break down these materials into their monomer components to enable closed-loop recycling and the conversion of waste into higher-value products.
Valorization of Textile Waste: Enzymatic Upcycling of Terephthalic Acid Toward a Sustainable PET Value Chain
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This review summarizes new methods for using enzymes to break down plastic clothing waste (PET) into reusable chemicals, instead of just melting it down like traditional recycling. This matters because it could reduce the plastic waste and microplastic pollution created by fast fashion, offering a cleaner path to reuse materials rather than sending them to landfills or oceans.
Chemical Recycling of PET Polyester Textile Wastes Using Ag-Doped ZnO Nanoparticles: An Economical Solution for Circular Economy
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Researchers developed a chemical recycling method using silver-doped zinc oxide nanoparticles to break down polyester textile waste into reusable materials. Chemical recycling offers a path to recovering value from synthetic fabric waste that currently ends up in landfills or as microfiber pollution in waterways.
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