| Title | Chemical recycling of plastic wastes with alkaline earth metal oxides: A review |
|---|---|
| ID_Doc | 8384 |
| Authors | Chen, SQ; Hu, YH |
| Title | Chemical recycling of plastic wastes with alkaline earth metal oxides: A review |
| Year | 2023 |
| Published | |
| Abstract | Plastics have been widely used in daily life and industries due to their low cost and high durability, leading to huge production of plastics and tens of millions of plastic wastes every year. Chemical recycling can recycle contaminated and degraded plastics (that mechanical recycling cannot deal with) to obtain value-added products, which potentially solves the environmental problems caused by plastics and realizes a circular economy. Alkaline earth metal oxides, as a category of cost-effective and multi -functional materials, have been widely used in chemical recycling of common plastics, acting as three roles: catalyst, template, and absorbent. Among five commercial plastics, polyethylene terephthalate is suitable for pyrolysis and solvolysis. Polyethylene and polypropylene, which are ideal precursors for synthesis of carbon nanotubes, could be combined with biomass for copyrolysis. Polyvinyl chloride needs to be pretreated to reduce chloride content prior to pyrolysis. Depolymerization of polystyrene into monomers is attractive. This review summarized the chemical recycling approaches of commercial plastics and the strategies with alkaline earth metal oxides for the development of efficient recycling processes. It will aid understanding of the advances and challenges in the field and promote the future research. |
Similar Articles
| ID | Score | Article |
|---|---|---|
15168
|
Shaker, M; Kumar, V; Saffron, CM; Rabnawaz, M Revolutionizing Plastics Chemical Recycling with Table Salt(2024)Advanced Sustainable Systems, 8, 1 | |
| 5931
|
Dai, LL; Zhou, N; Lv, YC; Cheng, YL; Wang, YP; Liu, YH; Cobb, K; Chen, PL; Lei, HW; Ruan, RG Pyrolysis technology for plastic waste recycling: A state-of-the-art review(2022) | |
| 23588
|
Payne, J; Jones, MD The Chemical Recycling of Polyesters for a Circular Plastics Economy: Challenges and Emerging Opportunities(2021)Chemsuschem, 14, 19 | |
| 23856
|
Jeya, G; Dhanalakshmi, R; Anbarasu, M; Vinitha, V; Sivamurugan, V A short review on latest developments in catalytic depolymerization of Poly (ethylene terephathalate) wastes(2022)Journal Of The Indian Chemical Society, 99, 1 | |
| 22015
|
Caputto, MDD; Navarro, R; Valentín, JL; Marcos-Fernández, A Chemical upcycling of poly(ethylene terephthalate) waste: Moving to a circular model(2022)Journal Of Polymer Science, 60.0, 24 | |
| 25311
|
Chen, SQ; Hu, YH Advancements and future directions in waste plastics recycling: From mechanical methods to innovative chemical processes(2024) | |
| 14519
|
Ghosal, K; Nayak, C Recent advances in chemical recycling of polyethylene terephthalate waste into value added products for sustainable coating solutions - hope vs. hype(2022)Materials Advances, 3, 4 | |
| 5465
|
Sajwan, D; Sharma, A; Sharma, M; Krishnan, V Upcycling of Plastic Waste Using Photo-, Electro-, and Photoelectrocatalytic Approaches: A Way toward Circular Economy(2024)Acs Catalysis, 14, 7 | |
| 24083
|
Jung, S; Ro, I Strategic use of thermo-chemical processes for plastic waste valorization(2023)Korean Journal Of Chemical Engineering, 40, 4 | |
| 16527
|
Wang, CL; Han, HG; Wu, YF; Astruc, D Nanocatalyzed upcycling of the plastic wastes for a circular economy(2022) |