PET Glycolysis to BHET Efficiently Catalyzed by Stable and Recyclable Pd-Cu/γ-Al₂O₃.

ABSTRACT: Glycolysis of poly(ethylene terephthalate) (PET) is a prospective way for degradation of PET to its monomer bis(hydroxyethyl) terephthalate (BHET), providing the possibility for a permanent loop recycling. However, most reported glycolysis catalysts are homogeneous, making the catalyst difficult to recover and contaminating the products. Herein, we reported on the Pd-Cu/γ-Al₂O₃ catalyst and applied it in the glycolysis of PET as catalyst. The formed structure gave Pd-Cu/γ-Al₂O₃ a high active surface area, which enabled these micro-particles to work more efficiently. The PET conversion and BHET yield reached 99% and 86%, respectively, in the presence of 5 wt% of Pd-Cu/γ-Al₂O₃ catalyst within 80 min at 160 °C. After the reacti

SUBMITTER: Zhou L 

PROVIDER: S-EPMC11434405 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature