Chemical and biological catalysis for plastics recycling and upcycling

Nature Catalysis, Год журнала: 2021, Номер 4(7), С. 539 - 556

Опубликована: Июль 22, 2021

Язык: Английский

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Homogeneous Catalysis for Sustainable Energy: Hydrogen and Methanol Economies, Fuels from Biomass, and Related Topics

Chemical Reviews, Год журнала: 2021, Номер 122(1), С. 385 - 441

Опубликована: Ноя. 2, 2021

As the world pledges to significantly cut carbon emissions, demand for sustainable and clean energy has now become more important than ever. This includes both production storage of carriers, a majority which involve catalytic reactions. article reviews recent developments homogeneous catalysts in emerging applications energy. The most focus been on hydrogen as several efficient have reported recently (de)hydrogenative transformations promising economy. Another direction that extensively covered this review is methanol Homogeneous investigated from CO

Язык: Английский

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Chemically recyclable thermoplastics from reversible-deactivation polymerization of cyclic acetals

Science, Год журнала: 2021, Номер 373(6556), С. 783 - 789

Опубликована: Авг. 12, 2021

Identifying plastics capable of chemical recycling to monomer (CRM) is the foremost challenge in creating a sustainable circular plastic economy. Polyacetals are promising candidates for CRM but lack useful tensile strengths owing low molecular weights produced using current uncontrolled cationic ring-opening polymerization (CROP) methods. Here, we present reversible-deactivation CROP cyclic acetals commercial halomethyl ether initiator and an indium(III) bromide catalyst. Using this method, synthesize poly(1,3-dioxolane) (PDXL), which demonstrates strength comparable some commodity polyolefins. Depolymerization PDXL strong acid catalysts returns near-quantitative yield even proceeds from waste mixture. Our efficient method affords tough thermoplastic that can undergo selective depolymerization monomer.

Язык: Английский

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A unified view on catalytic conversion of biomass and waste plastics

Nature Reviews Chemistry, Год журнала: 2022, Номер 6(9), С. 635 - 652

Опубликована: Авг. 11, 2022

Язык: Английский

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Enzymes’ Power for Plastics Degradation

Chemical Reviews, Год журнала: 2023, Номер 123(9), С. 5612 - 5701

Опубликована: Март 14, 2023

Plastics are everywhere in our modern way of living, and their production keeps increasing every year, causing major environmental concerns. Nowadays, the end-of-life management involves accumulation landfills, incineration, recycling to a lower extent. This ecological threat environment is inspiring alternative bio-based solutions for plastic waste treatment toward circular economy. Over past decade, considerable efforts have been made degrade commodity plastics using biocatalytic approaches. Here, we provide comprehensive review on recent advances enzyme-based biocatalysis design related processes recycle or upcycle plastics, including polyesters, polyamides, polyurethanes, polyolefins. We also discuss scope limitations, challenges, opportunities this field research. An important message from that polymer-assimilating enzymes very likely part solution reaching

Язык: Английский

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Upcycling and catalytic degradation of plastic wastes

Cell Reports Physical Science, Год журнала: 2021, Номер 2(8), С. 100514 - 100514

Опубликована: Июль 22, 2021

Various recycling technologies have been developed to deal with plastic problems, but they face considerable economic and technological challenges in practice. An attractive alternative is upcycling, which aims dig out the embedded value incentivize large-scale valorization of wastes. The degradation nonrecoverable wastes another necessity treat omnipresent pollution. This review presents an overview on conversion toward value-added products catalytic Based examination traditional products, we summarize state-of-the-art design development high-value high-performance fuels, chemicals, materials. Subsequently, highlight advances plastics environmentally benign or degradable mineralization into carbon dioxide water. We conclude our perspective ongoing challenge opportunities.

Язык: Английский

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Microplastics remediation in aqueous systems: Strategies and technologies

Water Research, Год журнала: 2021, Номер 198, С. 117144 - 117144

Опубликована: Апрель 15, 2021

Язык: Английский

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Catalytic strategies for upvaluing plastic wastes

Chem, Год журнала: 2022, Номер 8(11), С. 2912 - 2923

Опубликована: Сен. 7, 2022

Язык: Английский

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A circular polyester platform based on simple gem-disubstituted valerolactones

Nature Chemistry, Год журнала: 2022, Номер 15(2), С. 278 - 285

Опубликована: Ноя. 7, 2022

Язык: Английский

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Depolymerization within a Circular Plastics System

Chemical Reviews, Год журнала: 2024, Номер 124(5), С. 2617 - 2650

Опубликована: Фев. 22, 2024

The societal importance of plastics contrasts with the carelessness which they are disposed. Their superlative properties lead to economic and environmental efficiency, but linearity puts climate, human health, global ecosystems at risk. Recycling is fundamental transitioning this linear model into a more sustainable, circular economy. Among recycling technologies, chemical depolymerization offers route virgin quality recycled plastics, especially when valorizing complex waste streams poorly served by mechanical methods. However, exists in interlinked system end-of-life fates, complementarity each approach key environmental, economic, sustainability. This review explores recent progress made five commercial polymers: poly(ethylene terephthalate), polycarbonates, polyamides, aliphatic polyesters, polyurethanes. Attention paid not only catalytic technologies used enhance efficiencies also interrelationship other systemic constraints imposed Novel polymers, designed for depolymerization, concisely reviewed terms their underlying chemistry potential integration current plastic systems.

Язык: Английский

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