Perspectives on sustainable plastic treatment: A shift from linear to circular economy
Xingdong Shi, Zhijie Chen, Wei Wei, Bing‐Jie Ni
Abstract
The pervasive presence of plastics in the environment, particularly microplastics, has become a significant global challenge, demanding innovative solutions for their management and upcycling. While traditional methods including landfill and incineration face limitations in environmental impact, emerging technologies offer promising pathways for the conversion of plastics into valuable chemicals and fuels, operating under ambient conditions and often utilizing sustainable energy sources. Considering the current research progress in plastic upgrading, it is necessary to summarize the chemical upcycling of plastic waste. To this end, this review provides an overall examination of current and emerging methodologies for plastic treatment, including pyrolysis, hydrogenolysis, photocatalysis, and electrocatalysis. Existing knowledge gaps and future research directions are then proposed. Overall, this review highlights the potential of these novel plastic management approaches in aligning with the principles of a circular economy.