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An anthraquinone-based covalent organic framework for sustainable photocatalytic oxidative degradation of polystyrene

Aparna Tiwari¹, Supriti Dutta¹, Bikash Mishra¹

¹Department of Chemical and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata-700106, India. ps.pachfule@bose.res.in.

Chemical Communications (Cambridge, England)

|December 22, 2025

Abstract:

We present a mild, additive-free, photochemical, aerobic upcycling strategy for the selective conversion of polystyrene (PS) into benzoic acid using an anthraquinone-based covalent organic framework (COF). The reaction proceeds with low catalyst loading and high selectivity and recyclability. Moreover, gram-scale and real-waste degradation experiments demonstrate the practical applicability of this sustainable approach.

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