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CU Chemists discover process to recycle plastic bottles with electricity

CU Chemists discover process to recycle plastic bottles with electricity

BOULDER, Colo. — Researchers on the College of Colorado Boulder have achieved a significant breakthrough in plastic recycling, utilizing electrical energy and chemical reactions to interrupt down bottles and different packaging into their particular person constructing blocks which may then doubtlessly be reused in new merchandise.

Professor Oana Luca and graduate pupil Phuc Pham had been impressed to make use of their experience and keenness to handle the disaster of plastic waste in our surroundings, and have spent the final six months experimenting for an answer. America goes by means of thousands and thousands of tons of plastic yearly, and solely about 5% of it’s efficiently recycled, in response to Greenpeace.

“Whenever you’re a hammer, all the things seems like a nail. Whenever you’re a chemist, all the things seems like molecules,” stated Oana Luca, assistant professor of chemistry at CU Boulder. “We’re motivated by the elevated accumulation of plastic waste to the atmosphere, and I feel there must be an answer to the present disaster. And, we wish to contribute to it.”

The answer got here from inside small reactors of their campus lab.

Utilizing electrochemical reactions and a “single electron decreasing agent,” the researchers have efficiently damaged down plastic bottles into their molecular parts. Professor Luca likened the method to Legos—if you happen to had been to image your plastic water bottle as being composed out of Lego bricks, this electrochemical course of primarily takes the bricks aside. They’ll then be used once more to construct one other bottle (or different plastic product), slightly than being “downcycled” right into a single-use buying bag.

“I really feel like that is an instance of utilizing molecular natural chemistry on the most elementary of ranges, for good,” Luca stated.

Their present course of works on polyethylene terephthalate (“PET”) plastics, that are clear and light-weight and generally utilized in bottles and packaging. Many different varieties of plastics must be higher recycled as properly, although, and that’s the place Luca and Pham have their sights set now. In addition they wish to maintain fine-tuning their present course of, in order that it may be recreated at bigger scales.

“I’m very all for doing any type of plastic recycling,” Pham stated. “I hope that we are able to scale the response up so at some point it may be utilized on an industrial stage.”

“There are such a lot of polymers and supplies on the market that individuals aren’t recycling in any respect. They’re not being collected,” Luca added. “That is the start of many, many, many various sorts of chemistries.”


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