Abstract
With the increasing consumption of single-use plastics, a large number of petrochemical resources are used as raw materials, and hundreds of thousands of tons of plastic waste are produced every year. Although there are lots of methods that have been developed to solve this issue by recycling plastic waste, none of them can recover the value of the waste in an efficient way that is less economical cost and less harmful to the environment. Polyethylene terephthalate (PET) is one of the most widely produced single-use polymers. It is challenging to recover the value through mechanical recycling due to the degrading of properties during reprocessing. Chemical upcycling/recycling is an alternative to convert the polymer back to the monomer with less environmental effect, which has lower energy demand. Hydrolysis is one of the common methods in chemical upcycling; it can convert PET waste into value-added materials such as H2 fuel. This paper mainly focuses on the method that converts PET to value-added chemicals through hydrolysis in recent years, so as to offer some references for future researches.
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