ARGONNE, Ill., Dec. 22 (UPI) — Plastic bags found in abundance at grocery stores could be recycled into carbon nanotubes, a component in lithium ion batteries, an Illinois scientist said.
Vilas Pol, of Argonne National Laboratory 25-miles southwest of Chicago, developed the process as a way to turn plastic waste into an energy resource, the Southtown Star reported Tuesday.
With cobalt acetate as a catalyst, plastic bags were heated to 1,292 degrees Fahrenheit, which caused the carbon in the plastic to grow as nanotubes on the cobalt particles, Pol said, noting the process could be used on plastic water bottles and plastic cups.
The cobalt acetate, which is relatively expensive, could be recovered when the batteries were recycled, Pol said. Performing the process without cobalt acetate yields carbon spheres that could be used in printer ink.
Yet to be determined is how to collect enough bags to make the project cost efficient, Pol said. Recycling programs find the bags difficult to collect because they often get swept up in air currents, causing a problem for curbside collectors and recycling centers.
Copyright 2009 by United Press International