Green chemistry and the plastic pollution challenge: towards a circular economy

Sheldon, Roger A.; Norton, Michael

doi:10.1039/d0gc02630a

Cited by 240 publications

(154 citation statements)

References 95 publications

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“…This would allow the entry into ac irculare conomy. [18,19] Certain initiatives involving large chemical producers were recently started to introduceacircular economy based on chemcycling in order to replacethe current linear use of feedstocks. [20] Greener alternatives should also be as economic as possible.…”

Section: Room For Improvementsmentioning

confidence: 99%

Efficient Industrial Organic Synthesis and the Principles of Green Chemistry

Schaub

2021

Chemistry A European J

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Principles of Green Chemistry and Industrial Synthesis Can efficient state-of-the-art industrial organic synthesis be alignedw ith the principles of green chemistryo ra re these still two different worlds?N ot necessarily,a nd many of these principles are alreadyi mplementedi ni ndustrialo rganic synthesis for economic and regulatory reasons. But there remain enough challenges in making industrial organic synthesis greener, which requires intensiveresearch and innovative processes. Chemists should be aware of the 12 principles of green chemistry these days for obvious andg ood reasons. [1] Many principles for the economic production of organic bulk chemicals (production volumes of more than 1000 tons ay ear), the synthesis of which have potentially the highest environmental impact,c urrently overlap with principles of green chemistry (Scheme 1). [2] Efficient Key Transformations But what does this mean?F irst, atom economy is one of the core points in large-scale organic synthesis. The toolbox of organic transformationsr un on multi-million-ton scalesi sm ainly drivenb yn ot losing carbon from the starting materiala nd not producing unwanted by-products or waste (Scheme 2). The given transformations in Scheme 2c learly show that the use of catalysis is essential for most high atom efficient transformationsa nd one of the core points for the development of efficient synthetic routes and for further improvement. Oxidations:Lab vs. Industrial Ta king oxidations as an example, there are significantd ifferences in the lab-scale synthesis as compared to al arge industrial scale. Duet ot he convenient usea nd selectivities, easy-to-Scheme1.Principlesofg reen chemistry compared with principles for an economic production.

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Section: Room For Improvementsmentioning

confidence: 99%

Efficient Industrial Organic Synthesis and the Principles of Green Chemistry

Schaub

2021

Chemistry A European J

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“…Inexpensive, lightweight and robust, plastics remain a tremendous source of social and economic value, providing 1.6 million jobs and turning over € 360 billion in 2018 in Europe alone. 1,2 However, the current plastics economy remains fundamentally limited, dominated by petroleumbased products operating within a linear model, which underpins mounting environmental concerns. [3][4][5][6][7][8] Ocean plastics typify the severity of current plastic pollution with the Great Pacific Garbage Patch (GPGB), an accumulation zone of ocean plastics, encompassing ca.…”

Section: Introductionmentioning

confidence: 99%

Make or break: Mg(ii)- and Zn(ii)-catalen complexes for PLA production and recycling of commodity polyesters

et al. 2021

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“…However, performing plastics recycling via chemical processing is not enough. This must be achieved at competitive economic and environmental costs [ 345 ]. A perusal of the recent literature indicates that, despite their urgency and significance, strategies for sustainable chemical recycling are surprisingly still rather underdeveloped.…”

Section: Discussionmentioning

confidence: 99%

Valorisation of plastic waste via metal-catalysed depolymerisation

Liguori

Moreno‐Marrodán

Barbaro

2021

Beilstein J. Org. Chem.

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Metal-catalysed depolymerisation of plastics to reusable building blocks, including monomers, oligomers or added-value chemicals, is an attractive tool for the recycling and valorisation of these materials. The present manuscript shortly reviews the most significant contributions that appeared in the field within the period January 2010–January 2020 describing selective depolymerisation methods of plastics. Achievements are broken down according to the plastic material, namely polyolefins, polyesters, polycarbonates and polyamides. The focus is on recent advancements targeting sustainable and environmentally friendly processes. Biocatalytic or unselective processes, acid–base treatments as well as the production of fuels are not discussed, nor are the methods for the further upgrade of the depolymerisation products.

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Green chemistry and the plastic pollution challenge: towards a circular economy

Abstract: The solution to plastic pollution is not less chemistry but more, greener chemistry in a circular bio-based economy.

Cited by 240 publications

References 95 publications

Efficient Industrial Organic Synthesis and the Principles of Green Chemistry

Efficient Industrial Organic Synthesis and the Principles of Green Chemistry

Make or break: Mg(ii)- and Zn(ii)-catalen complexes for PLA production and recycling of commodity polyesters

Valorisation of plastic waste via metal-catalysed depolymerisation

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