Photochemical aerobic upcycling of polystyrene plastics to commodity chemicals using anthraquinone as the photocatalyst,Green Chemistry

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Photochemical aerobic upcycling of polystyrene plastics to commodity chemicals using anthraquinone as the photocatalyst
Green Chemistry ( IF 9.3 ) Pub Date : 2023-05-26 , DOI: 10.1039/d3gc00986f
Nikolaos F. Nikitas ₁ , Elpida Skolia ₁ , Petros L. Gkizis ₁ , Ierasia Triandafillidi ₁ , Christoforos G. Kokotos ₁

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Since the United Nations set goals dealing with climate change, the chemical industry has focused on recycling the already-used polymers, targeting the reinsertion of plastic waste to market via new products through reforming. Upcycling of polystyrene plastic waste is becoming one of the hottest fields of research in plastic upconversion. Herein, we introduce a novel, green, organocatalytic and photochemical aerobic upcycling process of polystyrene to benzoic acid, utilizing anthraquinone as the photocatalyst, LED 390 nm as the irradiation source and air as the sole oxidant. The developed protocol was applied successfully to the upcycling of daily-life used polystyrene products, leading to yields varying from 25% to 58%. Moreover, the obtained upcycled product from the polystyrene materials was employed to the successful synthesis of bioactive molecules, such as acetylsalicylic acid.

中文翻译：

使用蒽醌作为光催化剂将聚苯乙烯塑料光化学有氧升级为商品化学品

自联合国设定应对气候变化的目标以来，化学工业一直专注于回收已用过的聚合物，目标是通过改造新产品。聚苯乙烯塑料废弃物的升级回收正成为塑料升级改造的最热门研究领域之一。在此，我们介绍了一种新型、绿色、有机催化和光化学有氧循环聚苯乙烯生产苯甲酸的工艺，利用蒽醌作为光催化剂，LED 390 nm 作为辐照源，空气作为唯一氧化剂。所开发的协议成功应用于日常生活中使用的聚苯乙烯产品的升级回收，导致产量从 25% 到 58% 不等。此外，从聚苯乙烯材料中获得的升级回收产品被用于成功合成生物活性分子，如乙酰水杨酸。

更新日期：2023-05-31

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