From Polyester Plastics to Diverse Monomers via Low‐Energy Upcycling

Advanced Science, Journal Year: 2024, Volume and Issue: 11(25)

Published: April 16, 2024

Abstract Polyester plastics, constituting over 10% of the total plastic production, are widely used in packaging, fiber, single‐use beverage bottles, etc. However, their current depolymerization processes face challenges such as non‐broad spectrum recyclability, lack diversified high‐value‐added products, and crucially high energy consumption. Herein, an efficient strategy is developed for dismantling compact structure polyester plastics to achieve diverse monomer recovery. undergo swelling decrystallization with a low barrier via synergistic effects polyfluorine/hydrogen bonding, which further demonstrated density functional theory calculations. The process elucidated through scanning electron microscopy analysis. Obvious destruction crystalline region X‐ray crystal diffractometry curves. PET undergoes different aminolysis efficiently, yielding nine corresponding monomers low‐energy upcycling. Furthermore, four types five blended closed‐loop recycled, affording exceeding 90% yields. Kilogram‐scale real polyethylene terephthalate (PET) waste successfully achieved 96% yield.

Language: Английский

---

Valorization of Polyester Plastics and Biomass into Amines through a Dual Zirconium Catalysis

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Language: Английский

---

Catalyst-Free Upcycling of Poly(ethylene terephthalate) (PET) Waste into Degradable PET-Based Engineering Plastics via the Solvothermal Method

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 17, 2025

Language: Английский

---

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

Progress in Polymer Science, Journal Year: 2025, Volume and Issue: unknown, P. 101958 - 101958

Published: April 1, 2025

Language: Английский

---

Visible-light-sensitive microrobots using H2O as fuel for highly efficient capture and precise detection of nanoplastics

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 479, P. 135731 - 135731

Published: Sept. 6, 2024

Language: Английский

---

Selective hydrophilization based on alkaline-catalyzed alcoholysis: An approach to enhance the flotation of waste polyesters

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 129803 - 129803

Published: Sept. 1, 2024

Language: Английский

---

Advances and Challenges for Catalytic Recycling and Upgrading of Real-World Mixed Plastic Waste

ACS Catalysis, Journal Year: 2024, Volume and Issue: 15(2), P. 841 - 868

Published: Dec. 27, 2024

Catalytic conversion of waste plastic has attracted widespread attention due to pressing environmental issues and energy crisis. Although some methods have been successful in converting single-component waste, unfortunately, the real-world typically made up a mixture various plastics, which poses significant difficulties challenges for catalyst selection product distribution catalytic mixed plastic. Recently, number new technologies developed address plastic, aiming overcome limitations current drive progress this field. This review summarizes recycling upgrading into monomers or value-added chemicals by thermocatalysis, photocatalysis/photothermal catalysis, tandem chemical-biocatalysis. The construction efficient catalysts, understanding reaction pathways, design systems, practical applicability each method are highlighted discussed detail. Our goal is elucidate mechanisms principles process design, providing guidance development, integration optimization that enhance efficiency processing capabilities waste. Furthermore, economic feasibility impact treatment were comprehensively evaluated summarizing techno-economic analysis life cycle assessment studies. Lastly, remaining technological future directions industrial-scale generate products described.

Language: Английский

---

Circular Economy and Chemical Conversion for Polyester Wastes

ChemSusChem, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 7, 2024

Abstract Polyester waste in the environment threatens public health and environmental ecosystems. Chemical recycling of polyester offers a dual solution to ensure resource sustainability ecological restoration. This minireview highlights traditional methods novel strategies plastics. The conventional strategy includes pyrolysis, carbonation, solvolysis polyesters for degradation recycling. Furthermore, review delves into exploring emerging technologies including hydrogenolysis, electrocatalysis, photothermal, photoreforming, enzymatic upcycling polyesters. It emphasizes selectivity products during conversion process elucidates pathways. More importantly, separation purification products, life cycle assessment, economic analysis overall are essential evaluating viability chemical Finally, perspective future challenges developments economy.

Language: Английский

---

Using CO2 in Pyrolysis to Neutralise Toxic Aromatic Compounds Derived from Blended Textile Waste

Journal of Analytical and Applied Pyrolysis, Journal Year: 2024, Volume and Issue: unknown, P. 106760 - 106760

Published: Sept. 1, 2024

Language: Английский

---

Closed-loop recycling of biodegradable poly(butylene adipate-co-terephthalate) based on hydrolysis and repolymerization strategy

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 114354 - 114354

Published: Oct. 1, 2024

Language: Английский

---