Northwestern University chemists have created a groundbreaking technique that uses moisture from air to break down plastic waste. The innovative, solvent-free process employs an inexpensive catalyst to dismantle polyethylene terephthalate (PET) plastic, converting it back into its original building blocks that can be recycled into new products or more valuable materials.

This environmentally friendly method achieved a 94% recovery rate in just four hours and works with mixed and colored plastics, eliminating the need for pre-sorting. The process is significantly cleaner, safer, and more sustainable than traditional plastic recycling approaches, which often rely on high temperatures, toxic solvents, and expensive catalysts.

Led by research assistant professor Yosi Kratish and professor Tobin J. Marks, the research offers a promising solution to plastic pollution, particularly important given that the U.S. recycles only 5% of its plastic waste. The researchers are now working to scale up the process for industrial applications.

This breakthrough holds promising implications for the flooring industry, where PET and other polyester materials are widely used in carpet fibers, backing, and various synthetic flooring products. With carpet recycling rates remaining low and end-of-life flooring materials often destined for landfills, this technology could revolutionize how the industry approaches sustainability.