A green technology for the close-loop recycling of vat dyed textiles

Resources Conservation and Recycling, Journal Year: 2025, Volume and Issue: 218, P. 108265 - 108265

Published: March 20, 2025

Language: Английский

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Efficient and Selective Catalytic Oxidation of Ethylbenzene over Co-MOF Synthesized from Waste PET

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Language: Английский

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Upcycling of Waste Plastics into Value-Added Chemicals

Science for energy and environment., Journal Year: 2025, Volume and Issue: unknown, P. 4 - 4

Published: March 27, 2025

Review Upcycling of Waste Plastics into Value-Added Chemicals Jin Xu and Jing Zhang * State Key Laboratory Chemical Engineering, East China University Science Technology, 130 Meilong Road, Shanghai 200237, Correspondence: [email protected] Received: 8 November 2024; Revised: 22 January 2025; Accepted: 24 March Published: 27 2025 Abstract: The rapid increase in plastic production has led to a severe waste crisis, driving the development various recycling technologies mitigate this growing issue. However, these often encounter substantial economic environmental challenges their implementation. An increasingly attractive alternative is chemical upcycling, which can transform plastics value-added chemicals. This review systematically examines upcycling applicable major commercial plastics, including polyethylene terephthalate (PET), polyolefins, polystyrene (PS), polyvinyl chloride (PVC). We focus on key strategies such as solvolysis, catalytic pyrolysis, hydrocracking hydrogenolysis, along with some emerging approaches electrocatalysis photooxidation, aiming summarize trends plastics.

Language: Английский

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Green and sustainable synthesis of MWCNT@g-C₃N₄@Ag photocatalyst from PET for efficient wastewater treatment

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 27, 2025

Due to the global water crisis, reclamation has been at heart of consideration by scientific communities in recent years. The main objective this study was synthesis a green and sustainable photocatalyst from waste, specifically polyethylene terephthalate plastic bottles, for efficient removal methylene blue (MB). characterization novel MWCNT@g-C₃N₄@Ag carried out using FESEM, EDS-MAP, Raman, XRD, DLS analysis. optimization approach, based on Response Surface Methodology (RSM), demonstrated that pH initial concentration were primary factors improving MB degradation. Also, increasing dosage reaction time appropriate wastewater treatment. Furthermore, predicted values showed strong agreement with experimental results, R2 = 0.95, Adj-R2 0.93, p-value less than 0.0001. optimized found be 12.6 mg L− 1, 9, 0.52 g 231 min, achieving efficiency 99.89%. MWCNTs@g-C3N4@Ag superior photocatalytic performance compared as-prepared multi-walled carbon nanotubes (MWCNTs). Consequently, can recommended as promising degradation due its environmental friendliness, low-cost precursors, excellent purification performance.

Language: Английский

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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

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Closed-loop recycling for poly(ethylene terephthalate) (PET) plastic: depolymerization, monomer separation, and recycled PET (rPET)

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163038 - 163038

Published: April 1, 2025

Language: Английский

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A novel Thermostable PETase from Kibdelosporangium aridum: Heterologous expression, immobilization and poly(ethelene terephthalate) decomposition applications

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145624 - 145624

Published: May 1, 2025

Language: Английский

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A free radical interlocking co-deposition strategy based on the oxidative pyrolysis mechanism of polyethylene terephthalate to achieve green energy recovery

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 135848 - 135848

Published: Sept. 16, 2024

Language: Английский

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Lattice Matching and Microstructure of the Aromatic Amide Fatty Acid Salts Nucleating Agent on the Crystallization Behavior of Recycled Polyethylene Terephthalate

Molecules, Journal Year: 2024, Volume and Issue: 29(13), P. 3100 - 3100

Published: June 28, 2024

To solve the decrease in crystallization, mechanical and thermal properties of recycled polyethylene terephthalate (rPET) during recycling, aromatic amide fatty acid salt nucleating agents Na-4-ClBeAmBe, Na-4-ClBeAmGl Na-4-ClAcAmBe were synthesized rPET/nucleating agent blend was prepared by melting blending. The molecular structure, stability, microstructure crystal structure characterized detail. differential scanning calorimetry (DSC) result indicated that addition improved crystallization temperature accelerated rate rPET. nucleation efficiencies (NE) increased 87.2%, 87.3% 41.7% compared with rPET which Na-4-ClBeAmBe Na-4-ClBeAmGl, their long-strip microstructures, more conducive to promoting equilibrium points (Tm0) rPET/Na-4-ClBeAmBe, rPET/Na-4-ClBeAmGl rPET/Na-4-ClAcAmBe 11.7 °C, 18.6 °C 1.9 rPET, illustrated lower mismatch between (0.8% b-axis) caused be most capable inducing epitaxial orient growth along b-axis direction small angle X-ray diffraction (SAXS) proved this conclusion. Meanwhile, clearest increase its flexural strength heat-distortion (HDT) at 20.4% 46.7%.

Language: Английский

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Electrospun Nanofibrous Membranes from Discarded Polyester Textiles for Oil Sorption

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(15), P. 8798 - 8810

Published: July 18, 2024

Language: Английский

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