Polyethylene terephthalate (PET) poses environmental challenges due to its low decomposition rates and inefficient recycling methods. PET, commonly found as a leading material in most plastic bottles, has inadequate recycling methods to the comparative consumption levels. Protic Ionic Liquids (PILs), formed from Brønsted acid-base pairs are considered designer sustainable solvents, offering tunable properties, low volatility, and high thermal stability, enabling efficient PET dissolution in comparative mild conditions. Optimized time, temperature, W/V%, catalyst recyclability, and BHET yield parameters demonstrated enhanced PET recovery and PIL recyclability. H NMR spectrum of PILs, Mass Spectrophotometry, and FT-IR provide the presence of a proton transfer between the comparative catalyst of PILs. Microwave heating on PET glycolysis enhanced the complete degradation of PET and BHET yield through direct hydrolysis. This approach highlights the methodology potential of PILs in advancing sustainable PET recycling and reducing plastic waste.
