Polyethylene Terephthalate (PET) Recycled by Catalytic Glycolysis: A Bridge toward Circular Economy Principles

Materials, Год журнала: 2024, Номер 17(12), С. 2991 - 2991

Опубликована: Июнь 18, 2024

Plastic pollution has escalated into a critical global issue, with production soaring from 2 million metric tons in 1950 to 400.3 2022. The packaging industry alone accounts for nearly 44% of this production, predominantly utilizing polyethylene terephthalate (PET). Alarmingly, over 90% the approximately 1 PET bottles sold every minute end up landfills or oceans, where they can persist centuries. This highlights urgent need sustainable management and recycling solutions mitigate environmental impact waste. To better understand PET's behavior promote its within circular economy, we examined chemical physical properties, current strategies most effective methods available today. Advancing economy framework by closing industrial loops demonstrated benefits such as reduced landfill waste, minimized energy consumption, conserved raw resources. end, identified various based on R-imperatives (ranging 3R 10R), focusing latest approaches aimed at significantly reducing waste 2040. Additionally, comparison (including primary, secondary, tertiary, quaternary recycling, along concepts "zero-order" biological techniques) was envisaged. Particular attention paid heterogeneous catalytic glycolysis, which stands out rapid reaction time (20-60 min), high monomer yields (>90%), ease catalyst recovery reuse, lower costs, enhanced durability. Accordingly, use highly efficient oxide-based catalysts glycolytic degradation is underscored promising solution large-scale applications.

Язык: Английский

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Recyclable Zinc Cyanamide Dual-Site Catalyst Enables Efficient PET Glycolysis

ACS Applied Polymer Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 29, 2025

Язык: Английский

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Development of Glycolysis Catalysts for PET Wastes Including Polyester Textiles

Fibers and Polymers, Год журнала: 2024, Номер unknown

Опубликована: Дек. 7, 2024

Язык: Английский

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Glycolysis of Poly (ethylene terephthalate) Using DBU-based Ionic Liquid Catalysts

Catalysis Today, Год журнала: 2025, Номер unknown, С. 115187 - 115187

Опубликована: Янв. 1, 2025

Язык: Английский

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Immobilized proton ionic liquid catalyst based on ZIF-8 catalytic degradation of PET performance and mechanism study

European Polymer Journal, Год журнала: 2025, Номер unknown, С. 113828 - 113828

Опубликована: Фев. 1, 2025

Язык: Английский

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Characterization of Properties and Kinetic Analysis of Unsaturated Polyester Resin Synthesized from PET Alcoholysis Waste

Polymers, Год журнала: 2025, Номер 17(6), С. 820 - 820

Опубликована: Март 20, 2025

Recycling and reutilization of waste PET through alcoholysis has been a prominent focus current research. However, the process is reversible, leading to generation oligomeric byproducts. To further utilize these wastes, this paper processed derived from various systems synthesize unsaturated polyester resins (UPRs). The fundamental characteristics, mechanical properties, curing processes synthesized UPRs were analyzed based on GPC, FTIR, TG, tensile testing, DMA, DSC tests. results indicate that wastes successfully UPRs. ethylene glycol (EG) diethylene (DEG) possess more complex compositions; among these, UPR EG exhibited higher thermal stability, whereas DEG showed broader molecular weight distribution lower glass transition temperature (Tg). In addition, remarkably high elongation at break (>180%), potentially attributed its long chains. Regarding obtained propylene (PG) slower rates demanded activation energies. Moreover, could be well described by Sesták–Berggren autocatalytic model.

Язык: Английский

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Efficient synergistic enhancing degradation of waste poly(ethylene terephthalate) by combination of DBU with zinc 2-ethylhexanoate

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116308 - 116308

Опубликована: Март 1, 2025

Язык: Английский

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From waste to wealth: Glycolysis of PET for high-value resource utilization

Waste Management, Год журнала: 2025, Номер 200, С. 114768 - 114768

Опубликована: Март 30, 2025

Язык: Английский

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Chemical Depolymerization of Polyethylene Terephthalate and Its Blends: Enhanced Strategies for Efficient Circularity

Progress in Polymer Science, Год журнала: 2025, Номер unknown, С. 101958 - 101958

Опубликована: Апрель 1, 2025

Язык: Английский

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Chemical Recycling of Catalytic Glycolysis of Polyethylene Terephthalate with Potassium-Rich Biomass

Recycling, Год журнала: 2025, Номер 10(3), С. 85 - 85

Опубликована: Май 2, 2025

Polyethylene terephthalate (PET) products are ubiquitous in daily life, offering convenience but posing significant environmental challenges due to their persistence and the difficulty of recycling them. Improper disposal waste PET contributes severe pollution resource loss. Chemical degradation has emerged as one most effective methods for recovering reusing PET. This article introduces a catalytic glycolysis strategy efficient environmentally sustainable using potassium-rich biomass, specifically banana peels. The study demonstrated that K2O K2CO3, derived from calcined peels, significantly catalyze Under optimal conditions, complete was achieved within 1.5 h at 180 °C, without additional chemical reagents. Product distribution confirmed high-purity bis(2-hydroxyethyl) could be obtained. interaction between K2CO3 ethylene glycol plays critical role determining competition alkaline hydrolysis. Furthermore, Density Functional Theory calculations provided valuable insights into transesterification process during glycolysis. reaction system also excellent compatibility with colored products. successfully realized simultaneous post-consumer novel approach valorization.

Язык: Английский

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