Recycling and depolymerisation of poly(ethylene terephthalate): a review

Polymer Chemistry, Год журнала: 2024, Номер 15(7), С. 585 - 608

Опубликована: Янв. 1, 2024

This review discusses the physical-, chemical recycling and biodegradation processes mechanisms of PET, proposing effecting compromise between its overall properties conferred intrinsic biodegradability by modified monomer polymerisation.

Язык: Английский

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Green recycling of waste PET plastic monomers by banana peel extract

Chemical Engineering Journal, Год журнала: 2023, Номер 474, С. 145697 - 145697

Опубликована: Авг. 29, 2023

Язык: Английский

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Multivalent cobalt nanoparticles supported on silica for efficient and sustainable methanolysis of commercial polyethylene terephthalate waste bottles

Catalysis Science & Technology, Год журнала: 2024, Номер 14(18), С. 5352 - 5363

Опубликована: Янв. 1, 2024

This work presents a novel pathway for methanolysis of PET waste using Co–SiO 2 as catalyst.

Язык: Английский

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TiFe2O4@SiO2–SO3H: A novel and effective catalyst for esterification reaction

Heliyon, Год журнала: 2024, Номер 10(4), С. e26286 - e26286

Опубликована: Фев. 1, 2024

In the present study, TiFe2O4@SiO2–SO3H heterogeneous catalyst was successfully synthesized and applied to generate biodiesel from oleic acid, palmitic acid using an esterification process. this sense, nanocatalyst surface characterized TEM, TGA, XRD, FTIR, VSM, BET, SEM, EDX analyses. Nanocatalyst showed high activity for of acid. Also, can be easily recovered with a bar magnet reused many times without any loss activity.

Язык: Английский

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Synthesis, characterization and dielectric properties of polymer nanocomposites for energy storage applications

Macromolecular Research, Год журнала: 2024, Номер 32(11), С. 1113 - 1122

Опубликована: Июль 22, 2024

Язык: Английский

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Efficient catalytic conversion of polyethylene terephthalate to dimethyl terephthalate over mesoporous beta zeolite supported zinc oxide

Carbon Future, Год журнала: 2025, Номер unknown

Опубликована: Фев. 11, 2025

Methanolysis of polyethylene terephthalate to dimethyl is a sustainable route for recycling (PET) plastic. Herein, we demonstrate that mesoporous Beta zeolite supported zinc oxide (Zn-Beta-meso) efficient methanolysis terephthalate, exhibiting ~99.9% yield at 180 °C after reaction 30 min. Model reactions confirmed the key step in PET was 2-hydroxyethyl methyl form where highly dispersed species are active sites this step. In addition, Zn-Beta-meso catalyst various substrates. When bottle with pigment, terylene, transparent adhesive tape, and soundproof cotton were applied as substrates, full conversion higher than 99.0% obtained.

Язык: Английский

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Orange peels bioashes from thermal treatment for adsorption of methyl orange: experimental investigation and Life Cycle Assessment

Next research., Год журнала: 2025, Номер unknown, С. 100419 - 100419

Опубликована: Май 1, 2025

Язык: Английский

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Two-Step Chemo-Microbial Degradation of Post-Consumer Polyethylene Terephthalate (PET) Plastic Enabled by a Biomass-Waste Catalyst

Bioengineering, Год журнала: 2023, Номер 10(11), С. 1253 - 1253

Опубликована: Окт. 26, 2023

Polyethylene terephthalate (PET) pollution has significant environmental consequences; thus, new degradation methods must be explored to mitigate this problem. We previously demonstrated that a consortium of three Pseudomonas and two Bacillus species can synergistically degrade PET in culture. The more readily consumes bis(2-hydroxyethyl) (BHET), byproduct created depolymerization, compared PET, fully convert BHET into metabolically usable monomers, namely terephthalic acid (TPA) ethylene glycol (EG). Because its crystalline structure, the main limitation biodegradation post-consumer is initial transesterification from BHET, depicting need for step process. Additionally, there have been numerous studies done on depolymerization reaction yet few tested biocompatibility product with bacterial consortium. In work, two-step process implemented sustainable biodegradation, where first depolymerized form using an orange peel ash (OPA)-catalyzed glycolysis reaction, followed by complete Results show OPA-catalyzed reactions depolymerize average yield 92% (w/w), biocompatible After inoculation consortium, 19% was observed 2 weeks, total percentage 17% when taking both steps account. Furthermore, 10-week rate 35%, demonstrating products are longer periods time, 33% over 10 weeks. While we predict achievable method, further experimentation allow circular recycling process, TPA recovered culture media reused create materials.

Язык: Английский

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Novel dragon fruit peel ash-derived solid catalyst for biodiesel production and PET waste recycling

Bioresource Technology Reports, Год журнала: 2023, Номер 24, С. 101663 - 101663

Опубликована: Окт. 21, 2023

Язык: Английский

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Synthesis of Fe3O4-Mn2O3 and Fe3O4-graphene oxide hybrid nanocatalyst and their effects on the electromagnetic properties and their performance on heavy hydrocarbons upgrading

Journal of Analytical and Applied Pyrolysis, Год журнала: 2024, Номер 179, С. 106467 - 106467

Опубликована: Март 20, 2024

Язык: Английский

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