| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Late News Poster Session
|
| Presentation Title |
F-43: X-ray Decomposition of PET Nanoparticles as an Alternative Process to Decontaminate Water Resources |
| Author(s) |
Leonardo Batista Capaverde Silva, J.V Rojas, Maria C Molina Higgins |
| On-Site Speaker (Planned) |
Leonardo Batista Capaverde Silva |
| Abstract Scope |
Micro and nanoplastics possess significant risk to living organisms. Thus, new materials processing strategies are needed to mitigate the side effects of plastics in the environment. In this work, radiation-induced degradation of nanoplastics is presented as an alternative to decrease the concentration of fragmented plastics in water. To gain insight into different degradation pathways of plastics, polyethylene terephthalate (PET) particles are irradiated using x-rays with doses ranging from 180-550 kGy. Results indicate that PET nanoplastics undergo a reduction in size of 23% at 550 kGy. XPS Results indicate a decrease in the amount of C=O bonds, and in the overall C content. Plastic degradation is due to chain scissions caused by reactive species such as OH radicals produced during water radiolysis. Overall, this work will provide alternatives for plastic pollution mitigation, aiming to improve the quality of aquatic ecosystems and safe access to water resources for human consumption. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Sustainability, Environmental Effects, Polymers |