Theory-guided multifunctional Zn-Salen molecular catalyst for sustainable polyester plastic recycling.

ABSTRACT: The escalating global challenge of plastic waste calls for innovative recycling solutions that overcome the high energy requirements of traditional chemical recycling and the inefficiency of enzymatic methods. Here, inspired by the structure of Salen-based molecular catalysts and the hydrolase-mediated degradation mechanism of poly(ethylene terephthalate) (PET), we report a multifunctional Zn-Salen molecular catalyst identified through theoretical screening and experimental validation. This catalyst achieves high PET conversion efficiency under mild conditions with low energy consumption. Mechanistic investigations reveal that its Zn metal site and quaternary ammonium component synergistically promote adsorption, activation, and nucleophilic attack towards the O-C[double bond, length as m-

SUBMITTER: Li M 

PROVIDER: S-EPMC12400447 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature