Catalytic oxidation of polystyrene to aromatic oxygenates over a graphitic carbon nitride catalyst

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	Catalytic oxidation of polystyrene to aromatic oxygenates over a graphitic carbon nitride catalyst
	Ruochen Cao 1; Mei-Qi Zhang 1; Chaoquan Hu 2; Dequan Xiao 4; Meng Wang 1; Ding Ma 1
Source Publication	Nature Communications
ISSN	2041-1723
Volume	13 Issue:1
Abstract	The continuous increase in manufacturing coupled with the difficulty of recycling of plastic products has generated huge amounts of waste plastics. Most of the existing chemical recycling and upcycling methods suffer from harsh conditions and poor product selectivity. Here we demonstrate a photocatalytic method to oxidize polystyrene to aromatic oxygenates under visible light irradiation using heterogeneous graphitic carbon nitride catalysts. Benzoic acid, acetophenone, and benzaldehyde are the dominant products in the liquid phase when the conversion of polystyrene reaches >90% at 150?°C. For the transformation of 0.5?g polystyrene plastic waste, 0.36?g of the aromatic oxygenates is obtained. The reaction mechanism is also investigated with various characterization methods and procedes via polystyrene activation to form hydroxyl and carbonyl groups over its backbone via C–H bond oxidation which is followed by oxidative bond breakage via C–C activation and further oxidation processes to aromatic oxygenates.
Language	英语
WOS ID	WOS:000841396400010
Citation statistics
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/53233
Collection	中国科学院过程工程研究所
Affiliation	1.北京大学 2.中国科学院过程工程研究所 3.中国科学院南京地理与湖泊研究所 4.纽黑文大学
Recommended Citation GB/T 7714	Ruochen Cao,Mei-Qi Zhang,Chaoquan Hu,et al. Catalytic oxidation of polystyrene to aromatic oxygenates over a graphitic carbon nitride catalyst[J]. Nature Communications,13(1).
APA	Ruochen Cao,Mei-Qi Zhang,Chaoquan Hu,Dequan Xiao,Meng Wang,&Ding Ma.
MLA	Ruochen Cao,et al."Catalytic oxidation of polystyrene to aromatic oxygenates over a graphitic carbon nitride catalyst".Nature Communications 13.1

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