A sustainable framework for advancing circular practices for polyethylene terephthalate textiles: optimized recycling of depolymerization byproducts and LCA validation.

This study demonstrates a novel circular approach for discarded polyethylene terephthalate (PET) textiles with life cycle assessment (LCA) validation, proposing an optimized recycling method for PET depolymerization byproducts. The experimental approach emphasizes sourcing the metal-organic framework ingredients including metal and linker components from a single PET depolymerization reaction. For depolymerization, a metal salt-based deep eutectic solvent (DES) composed of -toluene sulfonic acid and iron(iii) chloride hexahydrate was employed acting as both solvent and catalyst.