A short review on latest developments in catalytic depolymerization of Poly (ethylene terephathalate) wastes

• Published in: Journal of the Indian Chemical Society Vol. 99; no. 1; p. 100291
• Main Authors: Jeya, Gopal, Dhanalakshmi, Ravikumar, Anbarasu, Murugan, Vinitha, Viswanathan, Sivamurugan, Vajiravelu
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-01-2022
• Subjects: Aminolysis; Circular economy; Depolymerization; Glycolysis; PET; Waste management; Depolymerization; Waste management; Glycolysis; Circular economy; Aminolysis; PET
• ISSN: 0019-4522
• DOI: 10.1016/j.jics.2021.100291

Chemical recycling of plastic wastes is top among the effective management of the solid wastes. Particularly the post-consumer polyethylene terephthalate (PET) plastic wastes mainly generated from the disposal of beverage bottles and placed third most produced polymeric waste. However, PET wastes could be chemically recycled using several types of homo-/heterogeneous acid or base catalysts, and an effective recycling process has yet to be achieved. Therefore, the present short review is intended to display recent reports on the depolymerization of PET polymer wastes. The review aimed to cover glycolysis and aminolytic depolymerization using various catalytic systems. There is a wide spectrum of catalytic systems such as metal oxides, ionic liquids, organic bases, nanoparticles, porous materials and microwave-assisted rapid depolymerization methods have been developed toward the yield enhancement of the depolymerized products. Ideologically, the present review would benefit the researchers in familiarizing themselves with the latest developments in this field.
[Display omitted]